It's like junkmail! Make a note of its size! Now you can be wary of files of that particular size. Not too distant from this issue is filtering out .exe & .wmv files from your searches using Keyword filters. Oh & .jpg is another one of course. Unless you dwnld such files in which case you're stuck with those showing up in your search results. There's cons in business & advertising. They've hit the Gnutella network so it's like junkmail! Take my suggestions & try to forget about them.

Here's an interesting point: Quality of Content on the Network (click on this link!)