As was said in the post above, avast can only scan msn by dafult on win2000/NT/XP/2k OS’s, not win95/98(se)ect ;), it is a windows limitation not avast.
But properly configerd avast will scan msn, but i am unsure to the answer to your problem hch, did you try to right click scan the file like i suggested?, this may provide some help :slight_smile:

–lee