The newer versions of Windows, such as Windows 98 SE, Windows ME, Windows 2000 and Windows XP, has the ability to assign a system wide shortcut key to any shortcut. The purpose of this feature is to enable ultra-quick access to most used applications.
In the previous screenshot, the key combination CTRL + SHIFT + Z is assigned to the List Fields-shortcut. By pressing this key combination from anywhere, anytime, List Fields will launch! No need to fiddle with the mouse to get to the Actions-menu!
If your version of Windows doesn't support shortcut key combinations directly, there exist several tools on the Internet which has similar functionality.