Green Bar in Windows Movie Maker, and no XviD filter

The only solutions I see to the problem of the green bar is to uncheck the Xvid filter that’s supposed to be in WMM, which I don’t have. I only have an AVI decompressor and a DivX Decoder Filter. I tried downloading the XviD codec, but even after going through the process, it doesn’t show up in Windows Movie Maker.

I’m at a loss.

Try installing the mega or full K-Lite codec pack.