I updated 4 of my servers from WSUS 2.0 to 3.0 today with no apparent problems – the install was very smooth. The biggest difference so far is the move from WSUS Administration being web-based to being an MMC 3.0 snap-in.
If you’d like to administer your WSUS 3.0 install from a workstation, just double click WSUS3Setupx86.exe and select Administration Console Only when prompted. Once installed, the snap-in can be found under Administrative Tools -> Microsoft Windows Server Update Services 3.0. I thought of just yanking the wsus.msc module itself but it seems the Console_install switch installs not only that file but also 230+ of its friends. According to the Microsoft employee who left a comment below, you must install the entire package for the msc to work.
TechNet also added a section for Server-Side management on Windows Update Server. The current scripts include:
– Delete Empty Target Groups
– Re-index the WSUS 3.0 Database
– Server Status for Approved Updates
– Server Status Summary for All Computers and Updates
– Start Server Synchronization