adobe premier...? or another editting application. wont be quick tho. you will have to render the whole avi. which could take weeks. literally.
i know i basically just wanted to see if i could 'cut' the file in half so to speak without all the rendering bollox. fuck. plus all ive got is windows movie maker.... i think nero can handle .wmv files, but i cant be fucked with spending 40000000 hours rendering... fuck fuck fuck fuck fuck.
try HJ split. just cut it. see what happens. Movie Maker 2 for XP is better. free download too from Microsoft.