You can create keyboard shortcuts for any program in Windows 7. Right-click the program icon and select Properties. Select the Shortcut tab, click in Shortcut key, to set the keyboard shortcut for that program.
I am presenting the an example how to add keyboard shortcut for Mozilla Firefox bu using "ctrl+alt+m"
1. Right Click the program you want the keyboard shortcut (Mozilla Firefox for example)
2. You can see that Shortcut key has a value "none". Click on the none and press any key that you want to use for that. I have used M (:) Mozilla starts with M so.). You will see then ctrl+alt+m will be the new value there.
3. Now Press the ctrl+alt+shortcut key. for me it is ctrl+alt+m. You will see that your application is getting open with that key combination.