Reading the updated hotfix guide left me pondering, is it possible to install Windows Media Player 9.0 and Windows Messenger 5.0 through the Update Rollup method as shown here?

Cheers.

cmdlines.txt is run at the same time as svcpack.inf (13 min mark). I know that if you try installing wmp9 using cmdlines.txt it gives error (i think it says system restore needs to be enabled). Usually it's not a good idea to install things via cmdlines.txt, because cmdlines.txt runs under the system account and because we have no desktop. For these reasons i would say if it fails using cmdlines.txt, it'll probably fail using svcpack.inf.

If you really wanted to, you could extract the files from the wmp9 setup file and slipstream it using the .inf, but that would get very complicated.

-gosh