I have tested it, Virtual Dub is perfect for extracting the frames (after downloading a MFW codec) but i would rather use Image Ready then Gif Animator from microsoft because my GIF that i made with that is slow and it shocks a little (with 0 sec interfal) then i use the same frames and settings in Image Ready (also with 0 sec interfal) no problem (doesn't go slow and no shocking) I don't know if it works for others but for me it isn't working (i am using Windows XP pro SP2 it should work according to the site with no problems)