Exchange 2010 Regedit Dienstag, 27. November 2012 11:00   DistributedCOM 1009 Error   - Run REGEDIT on the source computer - Navigate to **HKLM\\Software\\Policies\\Microsoft\\Windows NT\\Rpc** - Create a new DWORD value called **IgnoreDelegationFailure** with the value of **1** - Restart the computer - Repeat for each Exchange 2010 SP1 Client Access Server