Microsoft Released OCS R2 CU 6 (kb 983472) in end of July , 2010 on the same day I applied the updates running a test ending up with an issue. A well operated OCS R2 server was stopped with failed Front end services just after the CU6 application.
The CU6 applied 13 major updates bundled in a single installer listing below
The update KB983472 causing this problem and front end services started up once uninstalled this update selectively.
Microsoft immediately released a workaround as to install OCS2009-DBUpgrade.msi (http://support.microsoft.com/kb/2032834) and reinstall KB983472 to rectify the problem.
Immediately next day Microsoft removed kb 983472 and re-released http://support.microsoft.com/kb/968802/en-us article which includes the solution in the order of installation.
This release is tested and works fine…ready to go…