I think… hmmm… client didn’t install any of the roll-ups since SP1 .   So I look at Windows Update’s Check Updates screen.

Windows Update says:

Google time!   Microsoft says this is the build number for UR2:

I knew at this point something was up.  Then I remembered a post I read on Technet a while back, but never bothered to file back into the inner caverns of my brain and decided to try another method.  I knew that this command:

GCM exsetup |%{$_.Fileversioninfo}

Would pull the correct file version number from AD and voila!  You get the correct build number.

Sneaky bastages!

Now what bothers me is that Microsoft still mentions the incorrect way in the Technet article:

http://technet.microsoft.com/en-us/library/hh135098.aspx

But then at the very bottom:

Why do they make this so difficult for us?