I'm a great fan of AutoIT. While trying to automate data entry into a java applet based ERP, I found that checking for entry error or success is quite a pain using pixelsearch. Instead, check for a data entry "success" or "failed" image is far simpler.
This a feature found in AHK, I've cut out the necessary code and compiled it into a DLL, and written a au3 library around it. I've tested it in various XP and W2k3 machines, and it seems to work fine. It's a quick and dirty hack I