msxml3 recently disappeared from Microsoft's site. Sadly, the only good download site I can find for it now is cnet, and that can't be fully scripted, so I've updated winetricks-alpha, but not yet winetricks. Try http://winetricks.org/winetricks-alpha and let me know if that's good enough for you. It will pop open a web browser to cnet's msxml3 page and prompt you to download msxml from that site.
