Yep, 7 months later and I finally did it! It's a UDF for creating uncompressed avi:s from bitmap files (support for compressing the video, may or may not appear). The structure is very easy: Start the avi library Create a avi file Add bitmaps to it Close the avi Stop the avi library Download:AVIWriter.au3 Previous downloads: 55 Example: ; Example by ProgAndy #include <ScreenCapture.au3> #include "AVIWriter.au3" Hotkeyset("{ESC}","close") Break(0) FileDelete(@Desk