Hi,
When I want to start a certain process (GTA IV), 1 times on 2 it crashs and I got a BSOD…
The error file is aswp.sys, and after some search on google, other people have the same issue caused by Avast!.
How to fix that ?
Thank you.
have you tried latest beta version. 7.0.1443. ?
http://forum.avast.com/index.php?topic=99822.0
remeber it is a beta…so it may still have bugs. 
download who crashed > http://www.resplendence.com/whocrashed which gives a much better dump report as it could be a driver
Or a conflict with mounted partitions,
polonus