avi file wont play

Hi everyone, I was wondering if anyone could help me with this. I had my digital camcorder plugged into my computer and was my computer to capture directly to the computer, the software I am using id ulead video studio 7. my problem is that the software froze when I opened up my explorer window and look at something else. now the avi file is but i can’t access it, every time i view the source folder, the windows explorer crashes, same with media player, what can i do, i’ve tryed video fixer 2.11, all media fixer, and none of them do anything. is there anything else I can do??????
cheers
andy