AutoHotkey

AutoHotkey is a free and open-source custom scripting language for Microsoft Windows, primarily designed to provide easy keyboard shortcuts or hotkeys, fast macro-creation and software automation to allow users of most computer skill levels to automate repetitive tasks in any Windows application. It can easily extend or modify user interfaces (for example, overriding the default Windows control key commands with their Emacs equivalents). The installation package includes an extensive help file; web-based documentation is also available.