One or more classes from the following Component Object Model (COM) DLL are not registered. COM DLL: %1 The Intersite Messaging ...

One or more classes from the following Component Object Model (COM) DLL are not registered.  
  
COM DLL:
%1  
  
The Intersite Messaging service using the SMTP transport depends on this DLL.  
  
User Action  
Verify that this DLL is present and registered.  
  
Register this DLL manually using following commands:  
regsrv32 /u %1  
regsrv32 %1  
  
If this event continues to occur, you might have an obsolete version of this DLL. Verify the version using the following command:  
filever %windir%\system32\%1  
  
Restart the Intersite Messaging service.  
  
Additional Data  
Error value:
%3 %2
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