perl -e "use Win32::OLE; $hl = new Win32::OLE('HelloDot.HelloWorld') or die $!; $hl->SayHello();"

##</code><code>##

sn -k personality.snk

##</code><code>##

 using System;
using System.Reflection;
[assembly:AssemblyVersion("1.0.0.0")]
[assembly:AssemblyKeyFile("personality.snk")]

namespace HelloDot {

  public class HelloWorld {
   public HelloWorld(){
    //no param constructor for COM

   }
   public void SayHello(){
     Console.WriteLine("Hello from DOT NET");
   }
  }
}

##</code><code>##

csc /t:library /out:hellodot.dll hello.cs

##</code><code>##

 gacutil /i hellodot.dll

##</code><code>##

regasm hellodot.dll

##</code><code>##

perl -e "use Win32::OLE; $hl = new Win32::OLE('HelloDot.HelloWorld') or die $!; $hl->SayHello();"