ImperativeSoftware.InputDirector
2.3

Control multiple Windows systems using the keyboard/mouse attached to one computer
Input Director enables the control of multiple Windows systems using the keyboard/mouse attached to one computer
Switch control between systems either by hotkey or by moving the cursor to the screen edge on one computer for it to appear on the next one
Input Director supports a shared clipboard - copy on one computer, switch control, and paste
Download Links For Version 2.3