Attached Link: http://www.virtualdub.org/index

There's an update to movie maker available from Microsoft. It outputs in .wmv format which is well compressed. It does one huge drawback (at least that's what I've found) and that is rectangular! I don't have the exact dimensions but basically if your original files are square it'll turn them into a rectangle, with all the squashing that entails. Fortunately, there are free video editors out there, virtual dub is pretty good. Try a search on Google for others, they do exist...