I need help making an avi file into a VIDEO and AUDIO folders. You know like splitting the avi file into sperate files. Please help me!

If I understand correctly, it’s very simple: is sufficient to use virtualDub.

Open your avi file, then go to menu FIle --> Save Wav.

For video go to menu Video --> Direct stream copy then in menu Audio --> No audio. Finally press F7 and save your video only file