On Windows server 2003 R2 64Bit occasionally an error occurred... and the process calling the search hanged, stopped working and the server didn’t respond anymore.
EventID:3083
'The protocol handler Search.Mapi2Handler.1 cannot be loaded. Error description: Class not registered'
The problem here is that windows is using two processes wo search for files:
- 32Bit search (not installed on 64bit servers)
- 64Bit searh (default installed)
Solution: ''regsvr32 c:\windows\system32\mssph.dll'' to register 32Bit version.