I don't think it's possible. IIRC, Apple's programs (QT Pro, iMovie, Final Cut Pro) are the only things that can make QuickTime files, and they either are Mac-only or don't support loading AVIs.
well, there is a converter from avi to mov program you can download at the converter's paradise http://medlem.spray.se/converters/
Just scroll down to the "W" section and click on winsmvid.zip and there you go!
EDIT:
If that direct link is not allowed in this forum, then one of the mods can feel free to delete it (or I can). I don't want any trouble