since having problems recently with LW loading on its own i downloaded Ad Aware and Ewido antispyware along with my AVG and microsoft antispyware
i love those new programs! I used to run ASquared which was also good, but for some reason it got corrupted. Even though i deleted it and tried to download it again it is still corrupted so i gave up on it.
as for wma files...i never download them, but i make a point to scan everything I DO download before playing it!