Simple GUI, nothing special. Did this 1. because it would take me a good week to make a WPF-style interface in this language, and 2. This is AutoHotKey. You rarely find a pretty GUI in AHK.

What it does is it lets you set anything you can run (programs, files, directories, websites, control panel items, etc.) to be ran when you put your mouse at any one of the four corners of the screen. Simple as that.

You can choose to use all four corners, 2 of them, 3 of them, whatever. Each corner has its own text box for the path of the file/program/website/whatever. If you leave the text box blank, it doesn't do anything when you move your mouse to that corner.

Note: Some virus scanners detect this as a virus. It isn't, but if you are unsure, just don't use it.

Crash bug: If you don't put in a completely correct path/address, the app will crash when you move your mouse to that corner. For a little more info, read the documentation in the zip folder.

Website -
http://prisoner7.deviantart.com/art/Hot-Corners-App-for-Windows-163641611?moodonly=24