WSUS breaks after applying KB2720211

After applying this: http://support.microsoft.com/kb/2720211 our WSUS broke down.

http://social.technet.microsoft.com/Forums/windowsserver/en-US/e918a191-ef6d-4c4b-b83a-7a4ae20a5217/wsus-30-sp2-will-not-run-after-installing-update-2720211?forum=winserverwsus

If you come across this issue the above link may assist with fixing the issue.

"D/L offline 2720211 installer
change HKEY_LOCAL_MACHINE\Software\Microsoft\Update Services\Server\Setup\wYukonInstalled from 1 to 0 
install update again 
reboot 
change HKEY_LOCAL_MACHINE\Software\Microsoft\Update Services\Server\Setup\wYukonInstalled from 0 to 1 
reboot 
install update AGAIN"

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