ok, there is only one way I have found to do it.
1.
http://www.download.com and search for "Cliprex"
2. Download it
3. Open it
4. Add files to the playlist, open one of them
5. Right click on the playing video and go to "capture photos"
6. Click on Disable Overlay... you can then capture in cliprex... or if doing it with an independent program... exit the capture photos menu
7. You will be prompted to enable overlay or leave it disabled... Regardless, choose NO
You will have to run the movies which you wish to gain captures of in cliprex, but you can use an independent program to do it. Your videos have disabled overlay as long as you play it in cliprex and as long as cliprex is open(obviously)
Now... who wants to eat my ass?
-Xinnov