Clip Save
From ATTWiki
ClipSave captures the screen and automatically saves the image to a new file in the same folder as the ClipSave program. The graphics files are numbered like "1.bmp", "2.bmp", "3.bmp", etc.
Download the latest version of ClipSave.exe here: http://www.advancedtubular.com/utility/clipsave.exe
