If you experience MPNews crashing with the errors entered in the Application event log similar to:
Event ID : 1023
Raw Event ID : 1023
Record Nr. : 14
Category : None
Source : .NET Runtime
Message : NET Runtime version 2.0.50727.42 - Fatal Execution Engine Error (7A05E2B3) (80131506)
and/or
Event ID : 1000
Raw Event ID : 1000
Record Nr. : 15
Category : None
Source : .NET Runtime 2.0
Error Reporting Type : Error
Message : Faulting application mps.mpnews.service.exe, version 5.0.0.1, stamp 42435be1, faulting module mscorwks.dll, version 2.0.50727.42, stamp 4333e7ec, debug? 0, fault address 0x000e9f96.
then you will need to install Microsoft Hotfix 913384 to resolve the problem.