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.
change keyboard layout change keyboard mapping change keyboard keys replace key on keyboard key exchange key changer keyboard keys keyboard input mouse and keyboard on screen keyboard keyboard switch

Bill Redirect Serial COMPort to Keyboard 

Resident Tray System software for barcode scanner or other serial data capture devices that have a standard RS232 interface. The program will redirect serial inputs from COM ports to keyboard buffer. Debugger, Macro Commands, Search and replace char.
keyboard wedge software soft keyboard wedge serial wedge software serial to keyboard converter rs-232 to keyboard converter serial port barcode wedge software

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.
on screen keyboard on-screen-keyboard osk customize keyboard keyboard layout