What the developer of the software program Capswitch did not know is that the Windows operating system comes with options to switch keyboard locales with keyboard shortcuts. The Windows XP operating system for example provides this option in the Regional and Language options module of the Control Panel. A click on the Details button under the Languages tab will open all installed input languages.

A click on the Key Settings button will open another menu with the option to define keyboard shortcuts to switch instantly to the input language.

Only the keyboard shortcut to switch between all installed keyboard layouts is configured by default. It is however possible to define shortcuts for specific switches, e.g. From English to German and vice verse.

These keyboard shortcuts provide the easiest way to quickly switch between keyboard locales. The additional benefit is that no extra software needs to be running in the background for the functionality.