FWIW, I've had AVG say that it has gotten rid of a file (sorry, I don't remember the exact message), but usually I've managed to find it in the Virus Vault (this is w/ AVG Free 7.5)  -- these days I just don't have the Resident Shield portion enabled all of the time. I was pretty annoyed when it (seemingly -- my memory of this is fuzzy) moved files to the Virus Vault w/o giving me any choice in the matter. I guess I'll try to pay more attention in the future -- I know, I'll use ScreenshotCaptor
I just tried the "Scan with AVG" menu item from a Windows Explorer context menu on locally compiled versions of:
The result was "No threats found" -- (I wonder whether it'd make any difference, but I didn't specify custom icon files).
(In AVG Free 7.5, perhaps it's possible to add specific exceptions for future processing, but I haven't managed to determine how so far...)
 It's really fond of picking on a 7 zip sfx file
 No wait, I need an app to be semi-continuously taking screenshots of my desktop -- and perhaps automatically deleting screenshots that are older than say an hour ago...like an airplane's black box or something.