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Editorial Team
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Asked: 2026-05-17T20:07:23+00:00

I’m trying to run this tool in order to convert a Visual C++ project

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I’m trying to run this tool in order to convert a Visual C++ project to makefile.
The project I’m trying to convert project is written in VS2008, so I’m using a reference to Microsoft.VisualStudio.VCProjectEngine.dll from version 9.

It fails in this line:

VCProjectEngine vcprojEngine = new VCProjectEngineObject();

With the following exception:

Retrieving the COM class factory for
component with CLSID
{D19A00C4-A7F9-4E14-A5E1-D060B7EB57F3}
failed due to the following error:
80040154 Class not registered
(Exception from HRESULT: 0x80040154
(REGDB_E_CLASSNOTREG)).

When tried to register VCProjectEngine.dll with regsvr32, I got an error that the entry point DllRegisterServer was not found.

Any idea??

Thanks in advance.

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1 Answer

  1. Editorial Team

    There are not many good reasons this would fail, especially the regsvr32 step. Run dumpbin /exports on that dll. If you don’t see DllRegisterServer then you’ve got a corrupt install. It should have more side-effects, you wouldn’t be able to build C/C++ projects anymore.

    One standard failure mode is running this on a 64-bit operating system. This is 32-bit unmanaged code, you would indeed get the ‘class not registered’ exception. Project + Properties, Build tab, change Platform Target to x86.

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