WMI provider registered in SysWOW64 but cimwin32.dll is not there (x64) RRS feed

  • Question

  • Hello,

    I found a Windows 7 Professional x64 system where WMI fails to load providers managed by cimwin32.dll when invoked from a 32-bit applications. wbemtest.exe works fine, presumably because it's 64-bit.

    The reason why the provider fails loading is that WMI tries to load cimwin32.dll from %windir%\syswow64\wbem, but unfortunately cimwin32.dll is not present in this folder.

    I checked a clean install of Windows 7 in another machine and indeed cimwin32.dll is not placed in the syswow64\wbem folder, but in this clean system WMI works fine from 32-bit applications. So apparently it wasn't a file copy error.

    Do you have any hints as to what may have caused this problem and how to solve it?



    Wednesday, August 4, 2010 9:49 AM

All replies

  • Hello,

    today we had a similiar case on Windows 7 64bit RTM.

    WMI was working fine with 64bit Apps but crashing with 32bit Applications. It comes out that there was a comserver registration for the 32bit DLL which points to %systemdrive%\Windows\sysWoW64\wbem\cimwin32.dll. But the dll does not exist on the system.

    The registry key was:


    After renaming (deleting) the guid key HKEY_CLASSES_ROOT\Wow6432Node\CLSID\{D63A5850-8F16-11CF-9F47-00AA00BF345C} WMI works fine also with 32bit Apps





    Tuesday, January 17, 2012 4:19 PM
  • Hello,

    my VAIO-Update at my x64-Windows7 will not work. This typ helps very fine.



    Sunday, July 8, 2012 12:52 PM