Key Transformation 

Key Transformation can customize your keyboard layout, change any key on the keyboard to other keys. Its on-screen-keyboard ( soft keyboard ) is very easy to use.
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Keystroke Converter 

Keystroke Converter can customize your keyboard layout, change any key on the keyboard to other keys, replace keyboard shortcuts, execute micro or windows action.
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Softboy.net On Screen Keyboard 

Softboy.net On-screen-keyboard can be useful if you have mobility impairments, if you are using a tablet PC, or if your keyboard goes down. And it can works well on touch-screen. This a demo keyboard which includes the main keys on a normal keyboard.
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