From Don, it seems the SP2 includes http.sys. This is the kernel http driver that is included in windows server 2003. Now a question for don or the others:

Does it mean that the indigo stack actually hook up in http.sys instead of relying on IIS? 

This is something that has been running around for a few days but the blogosphere didn’t notice. You can enable the desktop composition engine in the post PDC build.

Just type in a command line:

C:\windows\I386\SBCtl.exe dcestart
C:\windows\I386\SBCtl.exe wmgstart

Have fun! (note we're talking about the 4052 builds that were leaked on the net a while ago...)

Thanks to Jason on the newsgroups. 

Just noticed while doing some clean-up work (as my machine seems to have gotten into some kind of neurotic reboot sequence…) that there is something new in the Add/Remove control panel…

You can now click on “show updates” and it will show you the patches that were previously hidden. For example, XP Service pack 2 is put under “Windows XP – Software Updates”. How cool is that?

Now my question is, how do you get the installer to know about that?