Application can be assigned to a shortcut key in Windows XP/Vista/7. The application would launch when the combination of keys is pressed which you entered as the Shortcut Key for that application.
To create Shortcut key for any application in Windows:
1. Right click the program icon and select Properties.
2. Then select the Shortcut tab
3. Click in Shortcut key textbox
4. Enter the keyboard shortcut for that program.
5. Press OK to exit
6. Use the Keyboard shortcut combo to launch the application.
The way i have used a combination of keys Ctrl+Alt+C to launch calculator application other applications can also be launched using Shortcut keys.
