Create .NET COM dll as existing C++ COM

[MrKBA]

Hi, I have to create .NET COM dll which will be used fro existing client applications. So what I need is : - create interface with SAME NAME AND GUID - create class implementing this interface ann have SAME NAME AND GUID as one in c++ - client should not rebuild or recompiled (save compatibility) Any help please

[Pete OHanlon]

Extract the type library from your COM DLL. Use tlbimp.exe to import this typelibrary (it will create this as a separate assembly which you might want to reintegrate back into your code using a tool such as Reflector).

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[MrKBA]

thank you for response but can you tell me how extracting tlb from c++ com because tlbExp not works

[Pete OHanlon]

Really? Your first thought wasn't to go to Google for this[^]?

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[Lost User]

A Batch file to make it more easy to Register the COM visible assembly and create the tlb: RegMyComVisible.bat

echo off
cd %~dp0

rem The following two path you Need to adjust to your needs
set regasm_tool= "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
set assembly= "C:\YourProject\YourComVisible.dll"

rem unregister previous version
%regasm_tool% %assembly% /u

rem Register actual Version and create a YourComVisible.tlb
%regasm_tool% %assembly% /codebase /tlb

pause

Make sure to run it as admin: Right Click RegMyComVisible.bat and select "Run As Admin". I hope it helps.

[MrKBA]

But my COM dll is C++ dll and couldn't be registred as you say .