Seems on my server that Windows Updates have broken my WSUS, I went to run it this morning from MMC and Bong! Error do I want to continue to run which throws me another error and fails or report the problem to MS. Seems it's broken since Windows Updates last night.
The error is:
"MMC Has detected an error in a snap-in and will unload it"
Any ideas anyone ?
I posted on this a while back when they broke it with an update - may be a similar issue:
KB2449742 breaks Exchange 2007 and 2010 Management - Gatt's Ramblings
The weird thing is it's only WSUS thats failing to load everything else seems fine, my exchange server seems fine also!
One of the updates was for WSUS itself, I restarted the server and it was fine afterwards.