Microsoft Office Communicator 2007 R2 crashes when you receive an incoming instant message notification.
Additionally, you receive the following error message in the Communicator UCCAPI log:
10/16/2009|13:03:44.862 1260:1004 INFO :: Function: SIP_MESSAGE::GetHeader 10/16/2009|13:03:44.862 1260:1004 ERROR :: SIP_MESSAGE::GetHeader: HRESULT failed: 80ee0005 = hr. GetHeader 10/16/2009|13:03:44.862 1260:1004 WARN :: pSipMessage->GetHeader() Failed in function ParsePCalledPartyIdHeader 10/16/2009|13:03:44.862 1260:1004 ERROR :: CUccServerEndpoint::ProcessIncomingCall - Failed to parse P-Called-Pary-ID header
This problem occurs when the XML for the incoming conversation is deserialized.
To resolve this problem, apply the following update:
976135 Description of the Communicator 2007 R2 cumulative update: January 2010
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.