There are many ways to solve this issue, but the real cause of this problem is still unknown. This problem is basically related to "Component Services", and when you open Component Services MMC, you will may get some error code alongwith "Class Not Registered" error message. You first delete IIS related packages in Component Services MMC: "IIS In-Process Applications", "IIS Out-of-Process Pooled Applications" and "IIS Utilities". Now recreate the IIS packages in COM+ using below command at the command prompt:
Code:
c:\winnt\system32\inetsrv\>rundll32 wamreg.dll, CreateIISPackage
Code:
c:\winnt\system32\inetsrv\>regsvr32 asptxn.dll
Code:
c:\winnt\system32\inetsrv\>IISRESET
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