AutoHotkey (ConceptTopic, 6)

From Compile Worlds

AutoHotkey is a program for Windows that, among other things, fills in a big hole left by a lot of game authors, i.e. remapping the controls.

The problem, though, is that it has this really stupid bug where it randomly decides to count loads and loads of hotkeys that weren't actually pressed, pushing it over its 70 hotkey per 2 seconds limit, making it display a warning message box, which in turn will screw up anything you were doing if you were playing a fullscreen game that has absolutely any influence from the passage of time. Like, for example, Touhou.

Oh, and you can't turn this warning off, either. Not globally, anyway. Only per-script. Which requires editing every script on your computer to disable it, and then remembering to do so whenever you make a new script too.