After the huge user uproar that happened when the Compact Framework 2.0 initially did not support CE 4.2 devices, one would think MSFT would have taken the point, instead, today I get another fun Vista Fact.

ActiveSync 4.2 and before will not run on Vista.  It's blocked, and tells you so when you try to run it;  Nice of them to let me install it first though.  The Vista solution is the Windows Mobile Device Center, which sounds very swell.  However it explicitly does not support CE 4.2.  Old version won't run, new version won't talk to my devices.  Of course I tried anyway and on my hardware any attempt to connect reliably crashes the Service Host over and over again.  So, for now, we can't sell our most expensive product on Vista.  Granted, I mostly blame this on the OEM who has refused to upgrade to CE 5 for over two years now.