On Tuesday, November 28, 2006, Rights Management Services Client with Service Pack 2 (KB917275) was downloaded by WSUS Server as classified under Service Packs.
According to Brian Lich [MSFT], “The RMS client should be not offered via WSUS because it is not considered a critical update. We are investigating this.”
The RMS client is offered on Windows Update and Microsoft Update to Windows 2000 and Windows XP computer as an Optional/Recommended update. It’s also available on the Microsoft Download Center.
I have approved this update for INSTALL and so far I haven’t seen any issue. Happy patching!