Necro-cro?
Need a rerecording emulator?
Go
here.
Why use something like FRAPS to record emulated game if it has built-in AVI Recorder (though some exceptions I would think are PSX and N64 games.)?
Oh, and why use Movie Maker? Much better stuff can be done: Vegas or just using AviSynth (which really isn't hard to use) and VirtualDub to see changes.
For this site, Movie Maker and Vegas aren't needed (or alllowed?). Good ol' AviSynth (again, not hard to use) and VirtualDub to see changes. MeGUI to make video file.