There are two kinds of updates in windows update: High-priority updates,Optional updates .
http://www.microsoft.com/windows/downloads/windowsupdate/learn/windowsxp.mspx.
In windows update agent api,we can get the Category of a update though the method "get_Categories".
There are tens of Categories as shown at
http://support.microsoft.com/kb/824684/en.
My questions is
how can I get the "High Priority" updates?
Or witch category of update is "High Priority"?
Thanks.