Where is a "FREE" file converter that supports up to 2GB from MP4 to WMV?

Need to be able to convert files(videos) from MP4 to WMV of sizes 2GB or more for >>FREE<< for Windows Movie Maker. A FREE WAY TO CONVERT MP4 VIDEOS TO WMV (OR AVI) WITHOUT HAVING A FREE "TRIAL" BECAUSE TRIALS SUCK I NEED A CONVERTER NOW!!!! PLEASE AND THANKS.