diff --git a/DTLib.Dtsod/DTLib.Dtsod.csproj b/DTLib.Dtsod/DTLib.Dtsod.csproj
index 0673c4e..a7c8734 100644
--- a/DTLib.Dtsod/DTLib.Dtsod.csproj
+++ b/DTLib.Dtsod/DTLib.Dtsod.csproj
@@ -2,7 +2,7 @@
     <PropertyGroup>
         <!--package info-->
         <PackageId>DTLib.Dtsod</PackageId>
-        <Version>1.0.2</Version>
+        <Version>1.0.3</Version>
         <Authors>Timerix</Authors>
         <Description>Definitely not json</Description>
         <RepositoryType>GIT</RepositoryType>
@@ -33,7 +33,7 @@
         <ProjectReference Include="..\DTLib\DTLib.csproj" />
     </ItemGroup>
     <ItemGroup Condition=" '$(Configuration)' != 'Debug' ">
-        <PackageReference Include="DTLib" Version="1.0.1" />
+        <PackageReference Include="DTLib" Version="1.0.2" />
     </ItemGroup>
     
     <!--project files-->
diff --git a/DTLib.Logging/DTLib.Logging.csproj b/DTLib.Logging/DTLib.Logging.csproj
index 31547aa..6ff1c66 100644
--- a/DTLib.Logging/DTLib.Logging.csproj
+++ b/DTLib.Logging/DTLib.Logging.csproj
@@ -2,7 +2,7 @@
     <PropertyGroup>
         <!--package info-->
         <PackageId>DTLib.Logging</PackageId>
-        <Version>1.0.6</Version>
+        <Version>1.0.7</Version>
         <Authors>Timerix</Authors>
         <Description>Loggers with dependency injection</Description>
         <RepositoryType>GIT</RepositoryType>
@@ -30,7 +30,7 @@
         <ProjectReference Include="..\DTLib.Ben.Demystifier\DTLib.Ben.Demystifier.csproj" />
     </ItemGroup>
     <ItemGroup Condition=" '$(Configuration)' != 'Debug' ">
-        <PackageReference Include="DTLib" Version="1.0.1" />
+        <PackageReference Include="DTLib" Version="1.0.2" />
         <PackageReference Include="DTLib.Ben.Demystifier" Version="1.0.2" />
     </ItemGroup>
 </Project>
diff --git a/DTLib.Network/DTLib.Network.csproj b/DTLib.Network/DTLib.Network.csproj
index 4a23456..1642e7c 100644
--- a/DTLib.Network/DTLib.Network.csproj
+++ b/DTLib.Network/DTLib.Network.csproj
@@ -2,7 +2,7 @@
     <PropertyGroup>
         <!--package info-->
         <PackageId>DTLib.Network</PackageId>
-        <Version>1.0.2</Version>
+        <Version>1.0.3</Version>
         <Authors>Timerix</Authors>
         <Description>Some sick network protocols</Description>
         <RepositoryType>GIT</RepositoryType>
@@ -32,6 +32,6 @@
         <ProjectReference Include="..\DTLib.Dtsod\DTLib.Dtsod.csproj" />
     </ItemGroup>
     <ItemGroup Condition=" '$(Configuration)' != 'Debug' ">
-        <PackageReference Include="DTLib.Dtsod" Version="1.0.2" />
+        <PackageReference Include="DTLib.Dtsod" Version="1.0.3" />
     </ItemGroup>
 </Project>
diff --git a/DTLib.Tests/DTLib.Tests.csproj b/DTLib.Tests/DTLib.Tests.csproj
index 3d276d9..2a6f9b5 100644
--- a/DTLib.Tests/DTLib.Tests.csproj
+++ b/DTLib.Tests/DTLib.Tests.csproj
@@ -27,14 +27,12 @@
 		<ProjectReference Include="..\DTLib\DTLib.csproj" />
 	</ItemGroup>
 	<ItemGroup Condition=" '$(Configuration)' != 'Debug' ">
-		<PackageReference Include="DTLib.Network" Version="1.0.2" />
+		<PackageReference Include="DTLib.Network" Version="1.0.3" />
+		<PackageReference Include="DTLib.Logging" Version="1.0.7" />
 	</ItemGroup>
 
 	<!--project files-->
 	<ItemGroup>
 		<None Update="Dtsod\TestResources\**\*" CopyToOutputDirectory="PreserveNewest" />
 	</ItemGroup>
-	<ItemGroup>
-	  <PackageReference Include="DTLib.Logging" Version="1.0.6" />
-	</ItemGroup>
 </Project>
diff --git a/DTLib/ColoredConsole.cs b/DTLib/Console/ColoredConsole.cs
similarity index 71%
rename from DTLib/ColoredConsole.cs
rename to DTLib/Console/ColoredConsole.cs
index 3e56569..f899197 100644
--- a/DTLib/ColoredConsole.cs
+++ b/DTLib/Console/ColoredConsole.cs
@@ -1,4 +1,4 @@
-namespace DTLib;
+namespace DTLib.Console;
 
 //
 // вывод и ввод цветного текста в консоли
@@ -32,9 +32,9 @@ public static class ColoredConsole
 
     public static void Write(ConsoleColor color,string msg)
     {
-        Console.ForegroundColor = color;
-        Console.Write(msg);
-        Console.ForegroundColor = ConsoleColor.Gray;
+        System.Console.ForegroundColor = color;
+        System.Console.Write(msg);
+        System.Console.ForegroundColor = ConsoleColor.Gray;
     }
 
     public static void Write(string msg) => Write(ConsoleColor.Gray, msg);
@@ -53,18 +53,18 @@ public static class ColoredConsole
         
         for (ushort i = 0; i < input.Length; i++)
         {
-            Console.ForegroundColor = ParseColor(input[i++]);
-            Console.Write(input[i]);
+            System.Console.ForegroundColor = ParseColor(input[i++]);
+            System.Console.Write(input[i]);
         }
-        Console.ForegroundColor = ConsoleColor.Gray;
+        System.Console.ForegroundColor = ConsoleColor.Gray;
     }
 
-    public static void WriteLine() => Console.WriteLine();
+    public static void WriteLine() => System.Console.WriteLine();
     public static void WriteLine(ConsoleColor color,string msg)
     {
-        Console.ForegroundColor = color;
-        Console.WriteLine(msg);
-        Console.ForegroundColor = ConsoleColor.Gray;
+        System.Console.ForegroundColor = color;
+        System.Console.WriteLine(msg);
+        System.Console.ForegroundColor = ConsoleColor.Gray;
     }
 
     public static void WriteLine(params string[] input)
@@ -76,9 +76,9 @@ public static class ColoredConsole
     // ввод цветного текста
     public static string Read(ConsoleColor color)
     {
-        Console.ForegroundColor = color;
-        var r = Console.ReadLine();
-        Console.ForegroundColor = ConsoleColor.Gray;
+        System.Console.ForegroundColor = color;
+        var r = System.Console.ReadLine();
+        System.Console.ForegroundColor = ConsoleColor.Gray;
         return r;
     }
 
diff --git a/DTLib/Console/LaunchArgument.cs b/DTLib/Console/LaunchArgument.cs
new file mode 100644
index 0000000..82d80e6
--- /dev/null
+++ b/DTLib/Console/LaunchArgument.cs
@@ -0,0 +1,41 @@
+namespace DTLib.Console;
+
+#nullable enable
+public class LaunchArgument
+{
+    public string[] Aliases;
+    public string Description;
+    public string? ParamName;
+    public Action? Handler;
+    public Action<string>? HandlerWithArg;
+    
+    private LaunchArgument(string[] aliases, string description)
+    {
+        Aliases = aliases;
+        Description = description;
+    }
+    
+    public LaunchArgument(string[] aliases, string description, Action handler) 
+        : this(aliases, description) => Handler = handler;
+
+    public LaunchArgument(string[] aliases, string description, Action<string> handler, string paramName)
+        : this(aliases, description)
+    {
+        HandlerWithArg = handler;
+        ParamName = paramName;
+    }
+
+    public StringBuilder AppendHelpInfo(StringBuilder b)
+    {
+        b.Append(Aliases[0]);
+        for (int i = 1; i < Aliases.Length; i++)
+            b.Append(", ").Append(Aliases[i]);
+        if (!String.IsNullOrEmpty(ParamName))
+            b.Append(" [").Append(ParamName).Append(']');
+        b.Append(" - ").Append(Description);
+        return b;
+    }
+
+    public override string ToString() => 
+        $"{{{{{Aliases.MergeToString(", ")}}}, Handler: {Handler is null}, HandlerWithArg: {HandlerWithArg is null}}}";
+}
\ No newline at end of file
diff --git a/DTLib/Console/LaunchArgumentParser.cs b/DTLib/Console/LaunchArgumentParser.cs
new file mode 100644
index 0000000..3d89fd0
--- /dev/null
+++ b/DTLib/Console/LaunchArgumentParser.cs
@@ -0,0 +1,110 @@
+namespace DTLib.Console;
+
+public class LaunchArgumentParser
+{
+    private Dictionary<string, LaunchArgument> argDict = new();
+    private List<LaunchArgument> argList = new();
+    public bool ExitIfNoArgs = true;
+
+    public class ExitAfterHelpException : Exception
+    {
+        internal ExitAfterHelpException() : base("your program can use this exception to exit after displaying help message")
+        { }
+    }
+    
+    public string CreateHelpMessage()
+    {
+        StringBuilder b = new();
+        foreach (var arg in argList) 
+            arg.AppendHelpInfo(b).Append('\n');
+        b.Remove(b.Length-1, 1);
+        return b.ToString();
+    }
+    public string CreateHelpArgMessage(string argAlias)
+    {
+        StringBuilder b = new();
+        var arg = Get(argAlias);
+        arg.AppendHelpInfo(b);
+        return b.ToString();
+    }
+    private void HelpHandler()
+    {
+        System.Console.WriteLine(CreateHelpMessage());
+        throw new ExitAfterHelpException();
+    }
+
+    private void HelpArgHandler(string argAlias)
+    {
+        System.Console.WriteLine(CreateHelpArgMessage(argAlias));
+        throw new ExitAfterHelpException();
+    }
+
+
+    public LaunchArgumentParser()
+    {
+        var help = new LaunchArgument(new[] { "h", "help" }, 
+            "shows help message", HelpHandler);
+        Add(help);
+        var helpArg = new LaunchArgument( new[]{ "ha", "helparg" }, 
+            "shows help message for particular argument", 
+            HelpArgHandler, "argAlias");
+        Add(helpArg);
+    }
+
+    public LaunchArgumentParser(ICollection<LaunchArgument> arguments) : this()
+    {
+        foreach (var arg in arguments) 
+            Add(arg);
+    }
+    public LaunchArgumentParser(params LaunchArgument[] arguments) : this()
+    {
+        for (var i = 0; i < arguments.Length; i++)
+            Add(arguments[i]);
+    }
+
+    public void Add(LaunchArgument arg)
+    {
+        argList.Add(arg);
+        for(int a=0; a<arg.Aliases.Length; a++)
+            argDict.Add(arg.Aliases[a], arg);
+    }
+    
+    public LaunchArgument Get(string argAlias)
+    {
+        // different argument providing patterns
+        if (!argDict.TryGetValue(argAlias, out var arg) &&    // arg
+            !(argAlias.StartsWith("--") && argDict.TryGetValue(argAlias.Substring(2), out arg)) && // --arg
+            !(argAlias.StartsWith('-') && argDict.TryGetValue(argAlias.Substring(1), out arg)) &&  // -arg
+            !(argAlias.StartsWith('/') && argDict.TryGetValue(argAlias.Substring(1), out arg)))    // /arg
+            throw new Exception($"invalid argument: {argAlias}\n{CreateHelpMessage()}");
+        
+        return arg;
+    }
+    
+    /// <param name="args">program launch args</param>
+    /// <exception cref="Exception">argument {args[i]} should have a parameter after it</exception>
+    /// <exception cref="NullReferenceException">argument hasn't got any handlers</exception>
+    /// <exception cref="ExitAfterHelpException">happens after help message is displayed</exception>
+    public void ParseAndHandle(string[] args)
+    {
+        if (args.Length == 0 && ExitIfNoArgs)
+        {
+            HelpHandler();
+        }
+        
+        for (int i = 0; i < args.Length; i++)
+        {
+            LaunchArgument arg = Get(args[i]);
+
+            if (arg.HandlerWithArg is not null)
+            {
+                if (i+1 >= args.Length)
+                    throw new Exception($"argument <{args[i]}> should have a parameter after it");
+                arg.HandlerWithArg(args[++i]);
+            }
+            else if (arg.Handler is not null)
+                arg.Handler();
+            else throw new NullReferenceException($"argument <{args[i]}> hasn't got any handlers");
+        }
+    }
+}
\ No newline at end of file
diff --git a/DTLib/DependencyResolver.cs b/DTLib/DependencyResolver.cs
index 6dc174f..3bc3c89 100644
--- a/DTLib/DependencyResolver.cs
+++ b/DTLib/DependencyResolver.cs
@@ -1,5 +1,4 @@
 using System.Runtime.InteropServices;
-using System.Threading;
 
 namespace DTLib;
 
diff --git a/DTLib/Logging/ConsoleLogger.cs b/DTLib/Logging/ConsoleLogger.cs
index 35933ac..a0b15d2 100644
--- a/DTLib/Logging/ConsoleLogger.cs
+++ b/DTLib/Logging/ConsoleLogger.cs
@@ -1,4 +1,6 @@
-namespace DTLib.Logging;
+using DTLib.Console;
+
+namespace DTLib.Logging;
 
 // вывод лога в консоль и файл
 public class ConsoleLogger : FileLogger
@@ -23,7 +25,7 @@ public class ConsoleLogger : FileLogger
         lock (consolelocker)
         {
             ColoredConsole.Write(msg);
-            Console.WriteLine();
+            System.Console.WriteLine();
         }
     }
 }
diff --git a/pack.sh b/pack.sh
index 95cc2f6..c506ed4 100644
--- a/pack.sh
+++ b/pack.sh
@@ -1,6 +1,7 @@
 #!/usr/bin/bash
 set -ex
 rm -rf nuget
+mkdir nuget
 dotnet pack -c Release -o ./nuget/
 rm ./nuget/DTLib.Tests.*
 ls nuget