As far as I can tell, AutoIt is one of the best scripting programs for Windows. Certainly one of the most sensible to me anyway. It's got easy syntax and if you know how to program (Basic, Pascal, C, C++, etc...) you can figure this out in a second.

The newest versions have the ability to construct many more UI elements so you can actually construct something that takes user input in a number of ways. It's not what I was using it for, but I really appreciated that its extra functionality did not hinder/complicate its basic functions. A lot of other programs/packages out there are a mish-mash of features and not very well implemented/thought out.

I wish it were available for Mac OS as well. Applescript is pretty cool functionally, but I can't stand its syntax.

Bruno