commit 866676ef536f0eb83f140e320e59055f6e19dbec
Author: Eugen Höglinger <eugen@hoeglinger.name>
Date:   Thu Aug 26 09:54:28 2021 +0200

    Initialize
    
    - Dll zum Erzeugen einer Logdatei
    - 3 Arten können erzeugt werden:
       - Automatischer Dateiname: 'log_dd.mm.yyyy.log'
       - Manueller Dateiname
       - Manueller Dateiname und frei definerbarer Dateiheader

diff --git a/.vs/LogWriter.git/v16/.suo b/.vs/LogWriter.git/v16/.suo
new file mode 100644
index 0000000..d73df10
Binary files /dev/null and b/.vs/LogWriter.git/v16/.suo differ
diff --git a/LogWriter.git.sln b/LogWriter.git.sln
new file mode 100644
index 0000000..b893459
--- /dev/null
+++ b/LogWriter.git.sln
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.31613.86
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "LogWriter", "LogWriter\LogWriter.csproj", "{9AB1C683-4535-4F92-A3D1-4AF8BC1C8B9E}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Test_LogWriter", "Test_LogWriter\Test_LogWriter.csproj", "{052D2936-B3E0-4348-991E-00FEC44CA3F1}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{9AB1C683-4535-4F92-A3D1-4AF8BC1C8B9E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{9AB1C683-4535-4F92-A3D1-4AF8BC1C8B9E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{9AB1C683-4535-4F92-A3D1-4AF8BC1C8B9E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{9AB1C683-4535-4F92-A3D1-4AF8BC1C8B9E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{052D2936-B3E0-4348-991E-00FEC44CA3F1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{052D2936-B3E0-4348-991E-00FEC44CA3F1}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{052D2936-B3E0-4348-991E-00FEC44CA3F1}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{052D2936-B3E0-4348-991E-00FEC44CA3F1}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {9030B3E2-EE94-4D2F-8FB1-2A39DF357BBA}
+	EndGlobalSection
+EndGlobal
diff --git a/LogWriter/LogWriter.cs b/LogWriter/LogWriter.cs
new file mode 100644
index 0000000..db61412
--- /dev/null
+++ b/LogWriter/LogWriter.cs
@@ -0,0 +1,524 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Eugen.ESystem.IO
+{
+    /// <summary>
+    /// Handles a log file
+    /// </summary>
+    [Description("Handles a log file")]
+    public class LogWriter : Component
+    {
+        #region Version und Copyright
+        // Version und Copyright
+        static string dllName = System.IO.Path.GetFileNameWithoutExtension(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase); //Den Programmnamen auslesen
+        static string dllVersion = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString();
+        static object[] attributes = Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyCopyrightAttribute), false);
+        static string copyright = GenerateCopyright();
+
+        //Assembly Datum und Zeit
+        static DateTime value = AssemblyDateTime();
+        static string date = value.ToShortDateString();
+        static string time = value.ToLongTimeString();
+
+        private static DateTime AssemblyDateTime()
+        {
+            var version = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version;
+            var buildDateTime = new DateTime(2000, 1, 1).Add(new TimeSpan(TimeSpan.TicksPerDay * version.Build + TimeSpan.TicksPerSecond * 2 * version.Revision));
+            //Tage seit dem 1. Januar 2000 und Sekunden seit Mitternacht, (multiplizier mit 2 ergibt das Original)
+            return buildDateTime;
+        }
+
+        private static string CurrentYear()
+        {
+            DateTime dtn = DateTime.Now;
+            return dtn.Year.ToString();
+        }
+
+        private static string StartYear()
+        {
+            string startYear = "";
+            if (((AssemblyCopyrightAttribute)attributes[0]).Copyright.Contains("Copyright © "))
+            {
+                startYear = ((AssemblyCopyrightAttribute)attributes[0]).Copyright.Replace("Copyright © ", "");
+                while (startYear.StartsWith(" "))
+                {
+                    startYear = startYear.Remove(0, 1);
+                }
+
+                if (startYear.Contains("-"))
+                {
+                    startYear = startYear.Remove(startYear.IndexOf("-"));
+                }
+                else
+                {
+                    startYear = startYear.Remove(startYear.IndexOf(" "));
+                }
+                return startYear;
+            }
+            else
+            {
+                DateTime dtn = DateTime.Now;
+                return dtn.Year.ToString();
+            }
+        }
+
+        private static string GenerateCopyright()
+        {
+            string startYear = StartYear();
+            string currentYear = CurrentYear();
+
+            if (startYear == currentYear)
+            {
+                return ((AssemblyCopyrightAttribute)attributes[0]).Copyright;
+            }
+            else
+            {
+                string temp = ((AssemblyCopyrightAttribute)attributes[0]).Copyright;
+                string start = temp.Remove(temp.IndexOf(startYear) - 1);
+                string end = (temp.Remove(0, temp.IndexOf(" by")));
+
+                return String.Concat(start, " ", startYear, "-", currentYear, end);
+            }
+        }
+        #endregion
+
+        #region DLL-Info
+        /// <summary>
+        /// Contains the name of the dll file.
+        /// </summary>
+        public static string DllName { private set; get; }
+
+        /// <summary>
+        /// Contains the version of the dll file.
+        /// </summary>
+        public static string DllVersion { private set; get; }
+
+        /// <summary>
+        /// Contains the copyright notice.
+        /// </summary>
+        public static string Copyright { private set; get; }
+
+        /// <summary>
+        /// Contains the name-, version- and copyright-information of the dll file.
+        /// </summary>
+        public static string[] DllInfo { private set; get; }
+
+        private static void SetDllInfo()
+        {
+            //Name, Version und Copyright setzen
+            DllName = dllName;
+            DllVersion = dllVersion;
+            Copyright = copyright;
+
+            string[] dllInfo = new string[3];
+            dllInfo[0] = dllName;
+            dllInfo[1] = dllVersion;
+            dllInfo[2] = copyright;
+            DllInfo = dllInfo;
+        }
+
+        protected string ProgramName { private set; get; }
+        protected string ProgramVersion { private set; get; }
+        protected string ProgramCopyright { private set; get; }
+        #endregion
+
+        #region delegates
+        /// <summary>
+        /// Provides a method, wich handles events from written messages
+        /// </summary>
+        /// <param name="sender">Sender object</param>
+        /// <param name="e">Event arguments</param>
+        [Description("Provides a method, wich handles events from written messages")]
+        public delegate void LogWriterEventHandler(object sender, LogWriterEventArgs e);
+        #endregion
+
+        #region fields
+        /// <summary>
+        /// Stores the log save path
+        /// </summary>
+        private string path = String.Empty;
+
+        /// <summary>
+        /// Stores the logfile name
+        /// </summary>
+        private string filename = String.Empty;
+
+        /// <summary>
+        /// Stores the log header
+        /// </summary>
+        private string logheader = String.Empty;
+
+        /// <summary>
+        /// Stores the file name format
+        /// </summary>
+        private string fileFormat = "log_{0:d}.log";
+
+        /// <summary>
+        /// Stores the message format
+        /// </summary>
+        private string messageFormat = "{0:T}: {1}";
+        #endregion
+
+        #region events
+        /// <summary>
+        /// Fired, when a message was written
+        /// </summary>
+        [Description("Fired, when a message was written")]
+        public event LogWriterEventHandler MessageWritten;
+
+        /// <summary>
+        /// Fired, when a new log file was createdFired, when a message was written
+        /// </summary>
+        [Description("Fired, when a new log file was createdFired, when a message was written")]
+        public event EventHandler FileCreated;
+        #endregion
+
+        #region properties
+        /// <summary>
+        /// Specifyes the log save path
+        /// </summary>
+        [Description("Specifyes the log save path")]
+        public string Path
+        {
+            get
+            {
+                return this.path;
+            }
+            set
+            {
+                this.path = value;
+            }
+        }
+
+        /// <summary>
+        /// Specifyes the file name format
+        /// </summary>
+        [Description("Specifyes the file name format")]
+        [DefaultValue("log_{0:d}.log")]
+        public string FileFormat
+        {
+            get
+            {
+                return this.fileFormat;
+            }
+            set
+            {
+                this.fileFormat = value;
+            }
+        }
+
+        /// <summary>
+        /// Specifyes the message format
+        /// </summary>
+        [Description("Specifyes the message format")]
+        [DefaultValue("{0:t}: {1}")]
+        public string MessageFormat
+        {
+            get
+            {
+                return this.messageFormat;
+            }
+            set
+            {
+                this.messageFormat = value;
+            }
+        }
+        #endregion
+
+        #region constructor
+        /// <summary>
+        /// Constructor (for DLL-Information)
+        /// </summary>
+        static LogWriter()
+        {
+            SetDllInfo();
+        }
+
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        public LogWriter()
+        {
+        }
+
+        /// <summary>
+        /// Constructor (Filename = 'log_dd.mm.yyyy.log)
+        /// </summary>
+        /// <param name="path">Specifyes the log save path</param>
+        public LogWriter(string path)
+        {
+            this.path = path;
+        }
+
+        /// <summary>
+        /// Constructor (Filename = self defined)
+        /// </summary>
+        /// <param name="path">Specifyes the log save path</param>
+        /// <param name="filename">Specifyes the log file name</param>
+        public LogWriter(string path, string filename)
+        {
+            this.path = path; 
+            this.filename = filename;
+            if (this.filename.EndsWith(".log"))
+            {
+                this.filename.Replace(".log", "");
+            }
+        }
+
+        /// <summary>
+        /// Constructor (Filename = self defined, with fileheader)
+        /// </summary>
+        /// <param name="path"></param>
+        /// <param name="filename"></param>
+        /// <param name="fileheader"></param>
+        public LogWriter(string path, string filename, string logheader)
+        {
+            this.path = path;
+            this.filename = filename;
+            if (this.filename.EndsWith(".log"))
+            {
+                this.filename.Replace(".log", "");
+            }
+            this.logheader = logheader;
+        }
+        #endregion
+
+        #region public members
+        /// <summary>
+        /// Writes a message
+        /// </summary>
+        /// <param name="message">Specifyes the message to be written</param>
+        /// <returns>Wheather the writing progress was successful</returns>
+        public bool WriteMessage(string message)
+        {
+            // if directory not exists, cancel
+            if (!Directory.Exists(this.path))
+                throw new DirectoryNotFoundException("The directory specifyed in Path was not found");
+
+            // holds the actual date and time
+            DateTime time = DateTime.Now;
+
+            // creates the file name
+            string fileName;
+
+            if (String.IsNullOrEmpty(this.filename))
+            {
+                if (String.IsNullOrEmpty(this.path))
+                {
+                    fileName = System.IO.Path.DirectorySeparatorChar.ToString();
+                }
+                else
+                {
+                    fileName = this.path;
+
+                    if (fileName[fileName.Length - 1] != System.IO.Path.DirectorySeparatorChar)
+                    {
+                        fileName += System.IO.Path.DirectorySeparatorChar;
+                    }
+                }
+
+                try
+                {
+                    fileName += String.Format(this.fileFormat, time);
+                }
+                catch (FormatException)
+                {
+                    throw new FormatException("FileFormat has the wrong format.");
+                }
+                catch
+                {
+                    return false;
+                }
+            }
+            else
+            {
+                if (this.path[this.path.Length - 1] != System.IO.Path.DirectorySeparatorChar)
+                {
+                    fileName = String.Concat(path, System.IO.Path.DirectorySeparatorChar, this.filename, ".log");
+                }
+                else
+                {
+                    fileName = String.Concat(this.path, this.filename, ".log");
+                }
+            }
+            
+
+            // build message line
+            string line;
+            try
+            {
+                // creates the line
+                line = String.Format(this.messageFormat, new object[] { time, message });
+            }
+            catch (FormatException)
+            {
+                throw new FormatException("MessageFormat has the wrong format.");
+            }
+            catch
+            {
+                return false;
+            }
+
+            try
+            {
+                StreamWriter writer;
+
+                // if a log header is to be written
+                if (!String.IsNullOrEmpty(logheader) && IsFileEmpty(fileName))
+                {
+                    // write log header
+                    // open file
+                    if (!File.Exists(fileName))
+                    {
+                        writer = new StreamWriter(fileName);
+                        OnFileCreated(EventArgs.Empty);
+                    }
+                    else
+                        writer = new StreamWriter(fileName);
+
+                    // write message line
+                    writer.WriteLine(this.logheader);
+
+                    // close file
+                    writer.Close();
+                }
+
+                // open file
+                if (!File.Exists(fileName))
+                {
+                    writer = new StreamWriter(fileName);
+                    OnFileCreated(EventArgs.Empty);
+                }
+                else
+                    writer = new StreamWriter(fileName, true);
+                
+                // write message line
+                writer.WriteLine(line);
+
+                // close file
+                writer.Close();
+
+                OnMessageWritten(new LogWriterEventArgs(time, message));
+
+                return true;
+            }
+            catch
+            {
+                return false;
+            }
+        }
+
+        private bool IsFileEmpty(string filename)
+        {
+            if (File.Exists(filename))
+            {
+                System.IO.StreamReader file = new System.IO.StreamReader(filename);
+
+                if (String.IsNullOrEmpty(file.ReadLine()))
+                {
+                    file.Close();
+                    return true; // file is empty
+                }
+                else
+                {
+                    file.Close();
+                    return false; // file is not empty
+                }
+            }
+            else
+            {
+                return true; // file doesn't exist - is empty
+            }
+        }
+        #endregion
+
+        #region protected members
+        /// <summary>
+        /// Fires the MessageWritten event
+        /// </summary>
+        /// <param name="e"></param>
+        protected void OnMessageWritten(LogWriterEventArgs e)
+        {
+            if (MessageWritten != null)
+                MessageWritten(this, e);
+        }
+
+        /// <summary>
+        /// Fires the FileCreated event
+        /// </summary>
+        /// <param name="e"></param>
+        protected void OnFileCreated(EventArgs e)
+        {
+            if (FileCreated != null)
+                FileCreated(this, e);
+        }
+        #endregion
+    }
+
+    #region LogWriterEventArgs class
+    /// <summary>
+    /// LogWriterEventArgs stores information about the sent log message
+    /// </summary>
+    public class LogWriterEventArgs : EventArgs
+    {
+        #region fields
+        /// <summary>
+        /// Stores the message post time
+        /// </summary>
+        private DateTime time;
+
+        /// <summary>
+        /// Stores the message
+        /// </summary>
+        private string message;
+        #endregion
+
+        #region properties
+        /// <summary>
+        /// Specifyes the message post time
+        /// </summary>
+        [Description("Specifyes the message post time")]
+        public DateTime Time
+        {
+            get
+            {
+                return this.time;
+            }
+        }
+
+        /// <summary>
+        /// Specifyes the message
+        /// </summary>
+        [Description("Specifyes the message")]
+        public string Message
+        {
+            get
+            {
+                return this.message;
+            }
+        }
+        #endregion
+
+        #region constructor
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name="time">Specifyes the message post time</param>
+        /// <param name="message">Specifyes the message</param>
+        public LogWriterEventArgs(DateTime time, string message)
+            : base()
+        {
+            this.time = time;
+            this.message = message;
+        }
+        #endregion
+    }
+    #endregion
+}
diff --git a/LogWriter/LogWriter.csproj b/LogWriter/LogWriter.csproj
new file mode 100644
index 0000000..e441cc8
--- /dev/null
+++ b/LogWriter/LogWriter.csproj
@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{9AB1C683-4535-4F92-A3D1-4AF8BC1C8B9E}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>LogWriter</RootNamespace>
+    <AssemblyName>helogwri</AssemblyName>
+    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <Deterministic>false</Deterministic>
+    <TargetFrameworkProfile />
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="LogWriter.cs">
+      <SubType>Component</SubType>
+    </Compile>
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>
\ No newline at end of file
diff --git a/LogWriter/Properties/AssemblyInfo.cs b/LogWriter/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..db28898
--- /dev/null
+++ b/LogWriter/Properties/AssemblyInfo.cs
@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// Allgemeine Informationen über eine Assembly werden über die folgenden
+// Attribute gesteuert. Ändern Sie diese Attributwerte, um die Informationen zu ändern,
+// die einer Assembly zugeordnet sind.
+[assembly: AssemblyTitle("LogWriter")]
+[assembly: AssemblyDescription("Schreibt eine Logdatei")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("LogWriter")]
+[assembly: AssemblyCopyright("Copyright © 2021 by Eugen Höglinger")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Durch Festlegen von ComVisible auf FALSE werden die Typen in dieser Assembly
+// für COM-Komponenten unsichtbar.  Wenn Sie auf einen Typ in dieser Assembly von
+// COM aus zugreifen müssen, sollten Sie das ComVisible-Attribut für diesen Typ auf "True" festlegen.
+[assembly: ComVisible(false)]
+
+// Die folgende GUID bestimmt die ID der Typbibliothek, wenn dieses Projekt für COM verfügbar gemacht wird
+[assembly: Guid("9ab1c683-4535-4f92-a3d1-4af8bc1c8b9e")]
+
+// Versionsinformationen für eine Assembly bestehen aus den folgenden vier Werten:
+//
+//      Hauptversion
+//      Nebenversion
+//      Buildnummer
+//      Revision
+//
+// Sie können alle Werte angeben oder Standardwerte für die Build- und Revisionsnummern verwenden,
+// indem Sie "*" wie unten gezeigt eingeben:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.*")]
+//[assembly: AssemblyFileVersion("1.0.0.0")] //Wenn auskommentiert, dann gleich wie AssemblyVersion!
diff --git a/LogWriter/bin/Debug/helogwri.dll b/LogWriter/bin/Debug/helogwri.dll
new file mode 100644
index 0000000..86ffc44
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diff --git a/LogWriter/bin/Debug/helogwri.pdb b/LogWriter/bin/Debug/helogwri.pdb
new file mode 100644
index 0000000..d7a6896
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diff --git a/LogWriter/obj/Debug/.NETFramework,Version=v4.6.1.AssemblyAttributes.cs b/LogWriter/obj/Debug/.NETFramework,Version=v4.6.1.AssemblyAttributes.cs
new file mode 100644
index 0000000..3aa5318
--- /dev/null
+++ b/LogWriter/obj/Debug/.NETFramework,Version=v4.6.1.AssemblyAttributes.cs
@@ -0,0 +1,4 @@
+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETFramework,Version=v4.6.1", FrameworkDisplayName = ".NET Framework 4.6.1")]
diff --git a/LogWriter/obj/Debug/.NETFramework,Version=v4.7.2.AssemblyAttributes.cs b/LogWriter/obj/Debug/.NETFramework,Version=v4.7.2.AssemblyAttributes.cs
new file mode 100644
index 0000000..3871b18
--- /dev/null
+++ b/LogWriter/obj/Debug/.NETFramework,Version=v4.7.2.AssemblyAttributes.cs
@@ -0,0 +1,4 @@
+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETFramework,Version=v4.7.2", FrameworkDisplayName = ".NET Framework 4.7.2")]
diff --git a/LogWriter/obj/Debug/DesignTimeResolveAssemblyReferences.cache b/LogWriter/obj/Debug/DesignTimeResolveAssemblyReferences.cache
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index 0000000..e7183b8
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diff --git a/LogWriter/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache b/LogWriter/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache
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index 0000000..aa799e8
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diff --git a/LogWriter/obj/Debug/LogWriter.csproj.CoreCompileInputs.cache b/LogWriter/obj/Debug/LogWriter.csproj.CoreCompileInputs.cache
new file mode 100644
index 0000000..890b03e
--- /dev/null
+++ b/LogWriter/obj/Debug/LogWriter.csproj.CoreCompileInputs.cache
@@ -0,0 +1 @@
+f0b374017f4794fe143ae8bbf7e29de886fecf22
diff --git a/LogWriter/obj/Debug/LogWriter.csproj.FileListAbsolute.txt b/LogWriter/obj/Debug/LogWriter.csproj.FileListAbsolute.txt
new file mode 100644
index 0000000..7568198
--- /dev/null
+++ b/LogWriter/obj/Debug/LogWriter.csproj.FileListAbsolute.txt
@@ -0,0 +1,5 @@
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\LogWriter\obj\Debug\LogWriter.csproj.CoreCompileInputs.cache
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\LogWriter\bin\Debug\helogwri.dll
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\LogWriter\bin\Debug\helogwri.pdb
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\LogWriter\obj\Debug\helogwri.dll
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\LogWriter\obj\Debug\helogwri.pdb
diff --git a/LogWriter/obj/Debug/helogwri.dll b/LogWriter/obj/Debug/helogwri.dll
new file mode 100644
index 0000000..86ffc44
Binary files /dev/null and b/LogWriter/obj/Debug/helogwri.dll differ
diff --git a/LogWriter/obj/Debug/helogwri.pdb b/LogWriter/obj/Debug/helogwri.pdb
new file mode 100644
index 0000000..d7a6896
Binary files /dev/null and b/LogWriter/obj/Debug/helogwri.pdb differ
diff --git a/Test_LogWriter/App.config b/Test_LogWriter/App.config
new file mode 100644
index 0000000..731f6de
--- /dev/null
+++ b/Test_LogWriter/App.config
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
+    </startup>
+</configuration>
\ No newline at end of file
diff --git a/Test_LogWriter/Form1.Designer.cs b/Test_LogWriter/Form1.Designer.cs
new file mode 100644
index 0000000..81e2939
--- /dev/null
+++ b/Test_LogWriter/Form1.Designer.cs
@@ -0,0 +1,119 @@
+
+namespace Test_LogWriter
+{
+    partial class Form1
+    {
+        /// <summary>
+        /// Erforderliche Designervariable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Verwendete Ressourcen bereinigen.
+        /// </summary>
+        /// <param name="disposing">True, wenn verwaltete Ressourcen gelöscht werden sollen; andernfalls False.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Vom Windows Form-Designer generierter Code
+
+        /// <summary>
+        /// Erforderliche Methode für die Designerunterstützung.
+        /// Der Inhalt der Methode darf nicht mit dem Code-Editor geändert werden.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.buttonRunProgram = new System.Windows.Forms.Button();
+            this.groupBoxProgramInfo = new System.Windows.Forms.GroupBox();
+            this.labelProgramInfo = new System.Windows.Forms.Label();
+            this.groupBoxDLLInfo = new System.Windows.Forms.GroupBox();
+            this.labelDLLInfo = new System.Windows.Forms.Label();
+            this.groupBoxProgramInfo.SuspendLayout();
+            this.groupBoxDLLInfo.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // buttonRunProgram
+            // 
+            this.buttonRunProgram.Location = new System.Drawing.Point(12, 287);
+            this.buttonRunProgram.Name = "buttonRunProgram";
+            this.buttonRunProgram.Size = new System.Drawing.Size(776, 23);
+            this.buttonRunProgram.TabIndex = 0;
+            this.buttonRunProgram.Text = "Programm ausführen";
+            this.buttonRunProgram.UseVisualStyleBackColor = true;
+            this.buttonRunProgram.Click += new System.EventHandler(this.buttonRunProgram_Click);
+            // 
+            // groupBoxProgramInfo
+            // 
+            this.groupBoxProgramInfo.Controls.Add(this.labelProgramInfo);
+            this.groupBoxProgramInfo.Location = new System.Drawing.Point(12, 372);
+            this.groupBoxProgramInfo.Name = "groupBoxProgramInfo";
+            this.groupBoxProgramInfo.Size = new System.Drawing.Size(385, 66);
+            this.groupBoxProgramInfo.TabIndex = 11;
+            this.groupBoxProgramInfo.TabStop = false;
+            this.groupBoxProgramInfo.Text = "Programm Information";
+            // 
+            // labelProgramInfo
+            // 
+            this.labelProgramInfo.AutoSize = true;
+            this.labelProgramInfo.ImeMode = System.Windows.Forms.ImeMode.NoControl;
+            this.labelProgramInfo.Location = new System.Drawing.Point(7, 20);
+            this.labelProgramInfo.Name = "labelProgramInfo";
+            this.labelProgramInfo.Size = new System.Drawing.Size(16, 13);
+            this.labelProgramInfo.TabIndex = 0;
+            this.labelProgramInfo.Text = "...";
+            // 
+            // groupBoxDLLInfo
+            // 
+            this.groupBoxDLLInfo.Controls.Add(this.labelDLLInfo);
+            this.groupBoxDLLInfo.Location = new System.Drawing.Point(403, 372);
+            this.groupBoxDLLInfo.Name = "groupBoxDLLInfo";
+            this.groupBoxDLLInfo.Size = new System.Drawing.Size(385, 66);
+            this.groupBoxDLLInfo.TabIndex = 12;
+            this.groupBoxDLLInfo.TabStop = false;
+            this.groupBoxDLLInfo.Text = "DLL Information";
+            // 
+            // labelDLLInfo
+            // 
+            this.labelDLLInfo.AutoSize = true;
+            this.labelDLLInfo.ImeMode = System.Windows.Forms.ImeMode.NoControl;
+            this.labelDLLInfo.Location = new System.Drawing.Point(7, 20);
+            this.labelDLLInfo.Name = "labelDLLInfo";
+            this.labelDLLInfo.Size = new System.Drawing.Size(16, 13);
+            this.labelDLLInfo.TabIndex = 0;
+            this.labelDLLInfo.Text = "...";
+            // 
+            // Form1
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(800, 450);
+            this.Controls.Add(this.groupBoxProgramInfo);
+            this.Controls.Add(this.groupBoxDLLInfo);
+            this.Controls.Add(this.buttonRunProgram);
+            this.Name = "Form1";
+            this.Text = "Test_LogWriter";
+            this.Load += new System.EventHandler(this.Form1_Load);
+            this.groupBoxProgramInfo.ResumeLayout(false);
+            this.groupBoxProgramInfo.PerformLayout();
+            this.groupBoxDLLInfo.ResumeLayout(false);
+            this.groupBoxDLLInfo.PerformLayout();
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.Button buttonRunProgram;
+        private System.Windows.Forms.GroupBox groupBoxProgramInfo;
+        private System.Windows.Forms.Label labelProgramInfo;
+        private System.Windows.Forms.GroupBox groupBoxDLLInfo;
+        private System.Windows.Forms.Label labelDLLInfo;
+    }
+}
+
diff --git a/Test_LogWriter/Form1.cs b/Test_LogWriter/Form1.cs
new file mode 100644
index 0000000..6dc49f5
--- /dev/null
+++ b/Test_LogWriter/Form1.cs
@@ -0,0 +1,147 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using Eugen.ESystem.IO;
+
+namespace Test_LogWriter
+{
+    public partial class Form1 : Form
+    {
+        #region Version und Copyright
+        // Version und Copyright
+        string programName = Path.GetFileNameWithoutExtension(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase); //Den Programmnamen auslesen
+        string programVersion = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString();
+        static object[] attributes = Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyCopyrightAttribute), false);
+        string copyright = GenerateCopyright();
+        string icon = Application.StartupPath + "\\Info.bmp";
+
+        //Assembly Datum und Zeit
+        static DateTime value = AssemblyDateTime();
+        string date = value.ToShortDateString();
+        string time = value.ToLongTimeString();
+
+        private static DateTime AssemblyDateTime()
+        {
+            var version = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version;
+            var buildDateTime = new DateTime(2000, 1, 1).Add(new TimeSpan(TimeSpan.TicksPerDay * version.Build + TimeSpan.TicksPerSecond * 2 * version.Revision));
+            //Tage seit dem 1. Januar 2000 und Sekunden seit Mitternacht, (multiplizier mit 2 ergibt das Original)
+            return buildDateTime;
+        }
+
+        private static string CurrentYear()
+        {
+            DateTime dtn = DateTime.Now;
+            return dtn.Year.ToString();
+        }
+
+        private static string StartYear()
+        {
+            string startYear = "";
+            if (((AssemblyCopyrightAttribute)attributes[0]).Copyright.Contains("Copyright © "))
+            {
+                startYear = ((AssemblyCopyrightAttribute)attributes[0]).Copyright.Replace("Copyright © ", "");
+                while (startYear.StartsWith(" "))
+                {
+                    startYear = startYear.Remove(0, 1);
+                }
+
+                if (startYear.Contains("-"))
+                {
+                    startYear = startYear.Remove(startYear.IndexOf("-"));
+                }
+                else
+                {
+                    startYear = startYear.Remove(startYear.IndexOf(" "));
+                }
+                return startYear;
+            }
+            else
+            {
+                DateTime dtn = DateTime.Now;
+                return dtn.Year.ToString();
+            }
+        }
+
+        private static string GenerateCopyright()
+        {
+            string startYear = StartYear();
+            string currentYear = CurrentYear();
+
+            if (startYear == currentYear)
+            {
+                return ((AssemblyCopyrightAttribute)attributes[0]).Copyright;
+            }
+            else
+            {
+                string temp = ((AssemblyCopyrightAttribute)attributes[0]).Copyright;
+                string start = temp.Remove(temp.IndexOf(startYear) - 1);
+                string end = (temp.Remove(0, temp.IndexOf(" by")));
+
+                return String.Concat(start, " ", startYear, "-", currentYear, end);
+            }
+        }
+        #endregion
+
+        #region Programm-Info
+        /// <summary>
+        /// Contains the name of the program file
+        /// </summary>
+        public static string ProgramName { set; get; }
+
+        /// <summary>
+        /// Contains the version of the program file
+        /// </summary>
+        public static string ProgramVersion { set; get; }
+
+        /// <summary>
+        /// Contains the copyright notice
+        /// </summary>
+        public static string Copyright { set; get; }
+
+        private void SetProgramInfo()
+        {
+            //Name, Version und Copyright setzen
+            ProgramName = programName;
+            ProgramVersion = programVersion;
+            Copyright = copyright;
+        }
+        #endregion
+
+        public Form1()
+        {
+            SetProgramInfo();
+            InitializeComponent();
+        }
+
+        private void Form1_Load(object sender, EventArgs e)
+        {
+            labelProgramInfo.Text = String.Concat(ProgramName, "\r\n", ProgramVersion, "\r\n", Copyright); // Zeigt die Programm-Information an
+
+            labelDLLInfo.Text = String.Concat(LogWriter.DllName, "\r\n", LogWriter.DllVersion, "\r\n", LogWriter.Copyright); // Zeigt die DLL-Information an
+        }
+
+        private void buttonRunProgram_Click(object sender, EventArgs e)
+        {
+            //Variante 1 - Logdateiname ist automatisch 'log_dd-mm-yy.log'
+            var logWriter1 = new LogWriter(@"C:\TMP\");
+            logWriter1.WriteMessage("Das ist ein Test");
+
+            //Variante 2 - Logdateiname wird angegeben, z.B. 'my_logfile.log'
+            var logWriter2 = new LogWriter(@"C:\TMP\", "my_logfile2");
+            logWriter2.WriteMessage("Das ist Test 2");
+
+            //Variante 3 - Logdateiname wird angegeben und Header wird geschrieben
+            string header = "--------------------\nDas ist der Header\n--------------------";
+            var logWriter3 = new LogWriter(@"C:\TMP\", "my_logfile3", header);
+            logWriter3.WriteMessage("Das ist Test 3");
+        }
+    }
+}
diff --git a/Test_LogWriter/Form1.resx b/Test_LogWriter/Form1.resx
new file mode 100644
index 0000000..1af7de1
--- /dev/null
+++ b/Test_LogWriter/Form1.resx
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
\ No newline at end of file
diff --git a/Test_LogWriter/Program.cs b/Test_LogWriter/Program.cs
new file mode 100644
index 0000000..5fd3680
--- /dev/null
+++ b/Test_LogWriter/Program.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace Test_LogWriter
+{
+    static class Program
+    {
+        /// <summary>
+        /// Der Haupteinstiegspunkt für die Anwendung.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+            Application.Run(new Form1());
+        }
+    }
+}
diff --git a/Test_LogWriter/Properties/AssemblyInfo.cs b/Test_LogWriter/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..9cdac3b
--- /dev/null
+++ b/Test_LogWriter/Properties/AssemblyInfo.cs
@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// Allgemeine Informationen über eine Assembly werden über die folgenden
+// Attribute gesteuert. Ändern Sie diese Attributwerte, um die Informationen zu ändern,
+// die einer Assembly zugeordnet sind.
+[assembly: AssemblyTitle("Test_LogWriter")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Test_LogWriter")]
+[assembly: AssemblyCopyright("Copyright © 2021 by Eugen Höglinger")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Durch Festlegen von ComVisible auf FALSE werden die Typen in dieser Assembly
+// für COM-Komponenten unsichtbar.  Wenn Sie auf einen Typ in dieser Assembly von
+// COM aus zugreifen müssen, sollten Sie das ComVisible-Attribut für diesen Typ auf "True" festlegen.
+[assembly: ComVisible(false)]
+
+// Die folgende GUID bestimmt die ID der Typbibliothek, wenn dieses Projekt für COM verfügbar gemacht wird
+[assembly: Guid("052d2936-b3e0-4348-991e-00fec44ca3f1")]
+
+// Versionsinformationen für eine Assembly bestehen aus den folgenden vier Werten:
+//
+//      Hauptversion
+//      Nebenversion
+//      Buildnummer
+//      Revision
+//
+// Sie können alle Werte angeben oder Standardwerte für die Build- und Revisionsnummern verwenden,
+// übernehmen, indem Sie "*" eingeben:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.*")]
+//[assembly: AssemblyFileVersion("1.0.0.0")] //Wenn auskommentiert, dann gleich wie AssemblyVersion!
diff --git a/Test_LogWriter/Properties/Resources.Designer.cs b/Test_LogWriter/Properties/Resources.Designer.cs
new file mode 100644
index 0000000..fd47b5e
--- /dev/null
+++ b/Test_LogWriter/Properties/Resources.Designer.cs
@@ -0,0 +1,70 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     Dieser Code wurde von einem Tool generiert.
+//     Laufzeitversion: 4.0.30319.42000
+//
+//     Änderungen an dieser Datei können fehlerhaftes Verhalten verursachen und gehen verloren, wenn
+//     der Code neu generiert wird.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+
+namespace Test_LogWriter.Properties
+{
+    /// <summary>
+    ///   Eine stark typisierte Ressourcenklasse zum Suchen von lokalisierten Zeichenfolgen usw.
+    /// </summary>
+    // Diese Klasse wurde von der StronglyTypedResourceBuilder-Klasse
+    // über ein Tool wie ResGen oder Visual Studio automatisch generiert.
+    // Um einen Member hinzuzufügen oder zu entfernen, bearbeiten Sie die .ResX-Datei und führen dann ResGen
+    // mit der Option /str erneut aus, oder erstellen Sie Ihr VS-Projekt neu.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources
+    {
+
+        private static global::System.Resources.ResourceManager resourceMan;
+
+        private static global::System.Globalization.CultureInfo resourceCulture;
+
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources()
+        {
+        }
+
+        /// <summary>
+        ///   Gibt die zwischengespeicherte ResourceManager-Instanz zurück, die von dieser Klasse verwendet wird.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager
+        {
+            get
+            {
+                if ((resourceMan == null))
+                {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("Test_LogWriter.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+
+        /// <summary>
+        ///   Überschreibt die CurrentUICulture-Eigenschaft des aktuellen Threads für alle
+        ///   Ressourcenlookups, die diese stark typisierte Ressourcenklasse verwenden.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture
+        {
+            get
+            {
+                return resourceCulture;
+            }
+            set
+            {
+                resourceCulture = value;
+            }
+        }
+    }
+}
diff --git a/Test_LogWriter/Properties/Resources.resx b/Test_LogWriter/Properties/Resources.resx
new file mode 100644
index 0000000..af7dbeb
--- /dev/null
+++ b/Test_LogWriter/Properties/Resources.resx
@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
\ No newline at end of file
diff --git a/Test_LogWriter/Properties/Settings.Designer.cs b/Test_LogWriter/Properties/Settings.Designer.cs
new file mode 100644
index 0000000..18b4b00
--- /dev/null
+++ b/Test_LogWriter/Properties/Settings.Designer.cs
@@ -0,0 +1,29 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+
+namespace Test_LogWriter.Properties
+{
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
+    {
+
+        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+
+        public static Settings Default
+        {
+            get
+            {
+                return defaultInstance;
+            }
+        }
+    }
+}
diff --git a/Test_LogWriter/Properties/Settings.settings b/Test_LogWriter/Properties/Settings.settings
new file mode 100644
index 0000000..3964565
--- /dev/null
+++ b/Test_LogWriter/Properties/Settings.settings
@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>
diff --git a/Test_LogWriter/Test_LogWriter.csproj b/Test_LogWriter/Test_LogWriter.csproj
new file mode 100644
index 0000000..9b4463b
--- /dev/null
+++ b/Test_LogWriter/Test_LogWriter.csproj
@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{052D2936-B3E0-4348-991E-00FEC44CA3F1}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <RootNamespace>Test_LogWriter</RootNamespace>
+    <AssemblyName>Test_LogWriter</AssemblyName>
+    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <Deterministic>false</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="helogwri">
+      <HintPath>..\LogWriter\bin\Debug\helogwri.dll</HintPath>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Deployment" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Form1.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="Form1.Designer.cs">
+      <DependentUpon>Form1.cs</DependentUpon>
+    </Compile>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <EmbeddedResource Include="Form1.resx">
+      <DependentUpon>Form1.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Resources.resx</DependentUpon>
+    </Compile>
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Settings.settings</DependentUpon>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>
\ No newline at end of file
diff --git a/Test_LogWriter/bin/Debug/Test_LogWriter.exe b/Test_LogWriter/bin/Debug/Test_LogWriter.exe
new file mode 100644
index 0000000..27dd99e
Binary files /dev/null and b/Test_LogWriter/bin/Debug/Test_LogWriter.exe differ
diff --git a/Test_LogWriter/bin/Debug/Test_LogWriter.exe.config b/Test_LogWriter/bin/Debug/Test_LogWriter.exe.config
new file mode 100644
index 0000000..731f6de
--- /dev/null
+++ b/Test_LogWriter/bin/Debug/Test_LogWriter.exe.config
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
+    </startup>
+</configuration>
\ No newline at end of file
diff --git a/Test_LogWriter/bin/Debug/Test_LogWriter.pdb b/Test_LogWriter/bin/Debug/Test_LogWriter.pdb
new file mode 100644
index 0000000..a4547fe
Binary files /dev/null and b/Test_LogWriter/bin/Debug/Test_LogWriter.pdb differ
diff --git a/Test_LogWriter/bin/Debug/helogwri.dll b/Test_LogWriter/bin/Debug/helogwri.dll
new file mode 100644
index 0000000..86ffc44
Binary files /dev/null and b/Test_LogWriter/bin/Debug/helogwri.dll differ
diff --git a/Test_LogWriter/bin/Debug/helogwri.pdb b/Test_LogWriter/bin/Debug/helogwri.pdb
new file mode 100644
index 0000000..d7a6896
Binary files /dev/null and b/Test_LogWriter/bin/Debug/helogwri.pdb differ
diff --git a/Test_LogWriter/obj/Debug/.NETFramework,Version=v4.6.1.AssemblyAttributes.cs b/Test_LogWriter/obj/Debug/.NETFramework,Version=v4.6.1.AssemblyAttributes.cs
new file mode 100644
index 0000000..3aa5318
--- /dev/null
+++ b/Test_LogWriter/obj/Debug/.NETFramework,Version=v4.6.1.AssemblyAttributes.cs
@@ -0,0 +1,4 @@
+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETFramework,Version=v4.6.1", FrameworkDisplayName = ".NET Framework 4.6.1")]
diff --git a/Test_LogWriter/obj/Debug/DesignTimeResolveAssemblyReferences.cache b/Test_LogWriter/obj/Debug/DesignTimeResolveAssemblyReferences.cache
new file mode 100644
index 0000000..625ed8b
Binary files /dev/null and b/Test_LogWriter/obj/Debug/DesignTimeResolveAssemblyReferences.cache differ
diff --git a/Test_LogWriter/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache b/Test_LogWriter/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache
new file mode 100644
index 0000000..14e0445
Binary files /dev/null and b/Test_LogWriter/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache differ
diff --git a/Test_LogWriter/obj/Debug/Test_LogWriter.Form1.resources b/Test_LogWriter/obj/Debug/Test_LogWriter.Form1.resources
new file mode 100644
index 0000000..6c05a97
Binary files /dev/null and b/Test_LogWriter/obj/Debug/Test_LogWriter.Form1.resources differ
diff --git a/Test_LogWriter/obj/Debug/Test_LogWriter.Properties.Resources.resources b/Test_LogWriter/obj/Debug/Test_LogWriter.Properties.Resources.resources
new file mode 100644
index 0000000..6c05a97
Binary files /dev/null and b/Test_LogWriter/obj/Debug/Test_LogWriter.Properties.Resources.resources differ
diff --git a/Test_LogWriter/obj/Debug/Test_LogWriter.csproj.AssemblyReference.cache b/Test_LogWriter/obj/Debug/Test_LogWriter.csproj.AssemblyReference.cache
new file mode 100644
index 0000000..5acd535
Binary files /dev/null and b/Test_LogWriter/obj/Debug/Test_LogWriter.csproj.AssemblyReference.cache differ
diff --git a/Test_LogWriter/obj/Debug/Test_LogWriter.csproj.CopyComplete b/Test_LogWriter/obj/Debug/Test_LogWriter.csproj.CopyComplete
new file mode 100644
index 0000000..e69de29
diff --git a/Test_LogWriter/obj/Debug/Test_LogWriter.csproj.CoreCompileInputs.cache b/Test_LogWriter/obj/Debug/Test_LogWriter.csproj.CoreCompileInputs.cache
new file mode 100644
index 0000000..b5690c6
--- /dev/null
+++ b/Test_LogWriter/obj/Debug/Test_LogWriter.csproj.CoreCompileInputs.cache
@@ -0,0 +1 @@
+c22a14cd5e15cda5a8e1291702aaf3f81bc0cc03
diff --git a/Test_LogWriter/obj/Debug/Test_LogWriter.csproj.FileListAbsolute.txt b/Test_LogWriter/obj/Debug/Test_LogWriter.csproj.FileListAbsolute.txt
new file mode 100644
index 0000000..c5d114d
--- /dev/null
+++ b/Test_LogWriter/obj/Debug/Test_LogWriter.csproj.FileListAbsolute.txt
@@ -0,0 +1,13 @@
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\Test_LogWriter\obj\Debug\Test_LogWriter.csproj.AssemblyReference.cache
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\Test_LogWriter\obj\Debug\Test_LogWriter.Form1.resources
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\Test_LogWriter\obj\Debug\Test_LogWriter.Properties.Resources.resources
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\Test_LogWriter\obj\Debug\Test_LogWriter.csproj.GenerateResource.cache
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\Test_LogWriter\obj\Debug\Test_LogWriter.csproj.CoreCompileInputs.cache
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\Test_LogWriter\bin\Debug\Test_LogWriter.exe.config
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\Test_LogWriter\bin\Debug\Test_LogWriter.exe
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\Test_LogWriter\bin\Debug\Test_LogWriter.pdb
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\Test_LogWriter\bin\Debug\helogwri.dll
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\Test_LogWriter\bin\Debug\helogwri.pdb
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\Test_LogWriter\obj\Debug\Test_LogWriter.csproj.CopyComplete
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\Test_LogWriter\obj\Debug\Test_LogWriter.exe
+H:\Programmieren\Git-WorkRepository\VisualStudio\_DLL\LogWriter.git\Test_LogWriter\obj\Debug\Test_LogWriter.pdb
diff --git a/Test_LogWriter/obj/Debug/Test_LogWriter.csproj.GenerateResource.cache b/Test_LogWriter/obj/Debug/Test_LogWriter.csproj.GenerateResource.cache
new file mode 100644
index 0000000..cbd6f0c
Binary files /dev/null and b/Test_LogWriter/obj/Debug/Test_LogWriter.csproj.GenerateResource.cache differ
diff --git a/Test_LogWriter/obj/Debug/Test_LogWriter.exe b/Test_LogWriter/obj/Debug/Test_LogWriter.exe
new file mode 100644
index 0000000..27dd99e
Binary files /dev/null and b/Test_LogWriter/obj/Debug/Test_LogWriter.exe differ
diff --git a/Test_LogWriter/obj/Debug/Test_LogWriter.pdb b/Test_LogWriter/obj/Debug/Test_LogWriter.pdb
new file mode 100644
index 0000000..a4547fe
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