After DS restore WSUS, SQL Reporting Services and SSEE failed to start.
For SSEE first extract ssee_10.msi from WSUSSetup*.msi\wYukon and then run the following command:
msiexec /i ssee_10.msi CALLERID=OCSetup.exe REINSTALL=ALL RINSTALLMODE=omus /qn REBOOT=ReallySupress /l*v c:\ssee_repair.log
Update Services (WSUS) wouldn't reinstall complaining about a lack of .NET Framework 2.0 and .NET Framework 2.0 wouldn't reinstall due to "... incompatible with a previously installed one" (ie NET2.0 SP1). Solution is to change/repair from add/remove programs and reboot.
Reporting services is fixed by this, too.
Finally, for any EVENT IDs 1309s to run %WINDOWS%\Microsoft.NET\Framework\V2.0.50727\aspnet_regiis.exe -i