How do I change a keyboard key function?

Question

I do not use my right Alt, and I would like to have a Underline key on that place.

Is there a way to configure my right Alt to be an underline character key?

update: using Windows 7

Solution

You should look into AutoHotkey. You can use that program to assign different functions to your keys or you can create your own keyboard shortcuts.

Comments

[Karan]

By "underline key" you mean something like Ctrl+U in Word, or did you mean the underscore key? If the former, there's no generic key for that and different apps may use different shortcuts, so this will probably require a fairly complex AutoHotkey script that will do per-app key remapping.