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Editorial Team
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Asked: 2026-05-18T19:51:53+00:00

I have activex server exe that was building and registering fine on 32bit OS.

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I have activex server exe that was building and registering fine on 32bit OS. I wanted to make 64 bit version of that exe by upgrading project to Visual Studio 2010 and changing platform to X64 which apparently doesn’t work.

Application itself works but I don’t see it registered after running 

That.exe /RegServer

I would appreciate any usable advice on migrating activex from 32 to x64.

Code that is processing /RegServer param is below:

if(lstrcmpi(lpszToken, _T("RegServer")) == 0)
  {
   _Module.UpdateRegistryFromResource(IDR_OUTDISKSARG, TRUE);
   nRet = _Module.RegisterServer(TRUE);
   bRun = false;
   break;
  }

32 bit activex is unuable for me since I have to load it in x64 .NET process.

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1 Answer

  1. Editorial Team

    1. When you run That.exe /RegServer, did you do that from an Administrator command prompt? If not that’s probably why it didn’t work.

    2. If you did and it still didn’t work, try debugging it to see what it’s doing to the registry. e.g. Use Process Monitor, or even the Visual Studio debugger (remembering to ensure the debugger runs your app as admin).

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