Hi,

I have been trying to get a web application which we wrote a while ago working on Windows Server 2008 64Bit (SP1) I have tried this on 3 different servers and I always get the same message:

Retrieving the COM class factory for component with CLSID {8C3E4934-9FA4-4693-9253-A29A05F99186} failed due to the following error: 80040154.

Visual C++ Error Lookup says that this error means 'Class not registered.' I have tried the following steps:

Installing CAPICOM and patching it to version 2.1.0.2.
Registering the dll with regsvr32.
Registering the dll with c:\Windows\SysWOW64\regsvr32.exe.
Installing Windows SDK.
Putting capicom.dll in the same directory as signtool.exe, registering it and adding it to the path.
Running tlbimp capicom.dll /out:Interop.CAPICOM.dll and replacing the Interop.CAPICOM.dll in the app.

I'm now out of ideas. I still get the same error message. Does anyone have any tips on how to get this working?

Thanks,

Joe

Your problem is indeed CapiCom.dll. You went about it in the wrong way though, you are registering the 32-bit version. You need the 64-bit version. The 64-bit version of Regsvr32.exe is in c:\windows\system32, syswow64 contains the 32-bit version.

I have this 64-bit DLL on my x64 Vista workstation, located in C:\Program Files\Common Files\Microsoft Shared\CAPICOM\CapiCom.dll. It is registered properly in HKCR\CLSID. It also has the 32-bit version in c:\program files (x86), also properly registered in HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Classes\CLSID.

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Hans Passant.

Thanks for your response nobugz. Ive tried registering it with both the 64bit and 32bit versions of regsvr32.exe. I still get the same message.

Joe

Hey Joe..

Do what Hans said plus do the job in a 64bists environment.
ie.
C:\Program Files (x86)\Windows Resource Kits\Tools>

Viggo