Hello, it is w2k3 r2 std i have problem with start some snap-ins like services.msc i have got error: ''MMC could not create the snap-in. the snap-in might not have been installed correctly. Name: Services CLSID: 58221-EA27-11CF-ADCF-00AA00A80033 '' i can nto find resolution for this problem. Near one was founded in KB: http://support.microsoft.com/default.aspx?scid=kb;en-us;826282&Product=winxp but the solution did not help. any tips ? Voytas

Hi, This cause could be a system file is corrupt. Let’s try the following suggestion to troubleshoot this issue: 1. Click Start, click Run, type regedit and press Enter. 2. Expand HKEY_CLASSES_ROOT\CLSID\{58221-EA27-11CF-ADCF-00AA00A80033}\InprocServer32 3. Checked the (Default) key value: (Default) =<filename>.dll 4. Confirm if the file is present in C:\WINDOWS\system32. If so, please register this dll file using the following command: regsvr32 C:\WINDOWS\system32\<FileName>.dll Can you open snap-ins now? Hope it helps. Tim Quan - MSFT