Live Communications Server Snap-in failed to start service

Did your LCS/OCS server go down?

A client recently lost LCS functionality. They are running Live Communication Server 2003.  The event viewer showed these errors:

Event Type:    Error
Event Source:    Live Communications Server
Event Category:    (1000)
Event ID:    16417
Date:        10/27/2009
Time:        3:56:35 PM
User:        N/A
Computer:    ——-
Description:
Unable to initialize the protocol stack, error code is:0xc0410804 (The installation information for Microsoft Live Communications Server is invalid. Please uninstall and reinstall the product.). The service has to stop.


Event Type:    Error
Event Source:    Live Communications User Services Snap-in
Event Category:    None
Event ID:    10
Date:        10/27/2009
Time:        3:56:36 PM
User:        N/A
Computer:    ——-
Description:
Live Communications Server Snap-in failed to start service:
Name = Live Communications Server
Path = “C:\Program Files\Microsoft LC\Server\RtcSrv.exe”
HRESULT = 8007042a.


Event Type:    Error
Event Source:    Live Communications User Services Snap-in
Event Category:    None
Event ID:    12
Date:        10/27/2009
Time:        3:56:36 PM
User:        N/A
Computer:    ——–
Description:
Live Communications Server Snap-in Start Service Error:
RtcSrv
HRESULT = 8007042a.

The resolution was simple, uninstalling KB974571 restored the service. That’s right, a Microsoft critical update killed LCS. The full story is here.

mpasatieri posted at 2009-10-28 Category: Server Support