If you are doing a fresh build on this platform, a couple of gotchas (1 well published, the other not so…)
Firstly on this platform you’ll need to use the SP2 version of WSUS 3 (KB 972455 refers). However, if you install the pre-requisite role of IIS by default and then try the WSUS 3.0 SP2 install, it will still fail reporting that IIS is required and not installed!
This is because the default IIS role services are not the full set for WSUS. So, go into Server Manager, and select the following role services and switch them on too.
Also, it is worth at this point grabbing and installing the report viewer 2008 redistributable as well.
Then your WSUS SP2 install will proceed and you should see this next!