Launchkey

Launchkey can be used to run an application and then send it keypresses.

The Launchkey application was designed to be a simple command line tool that can be run from a command prompt or from other applications.

The command line takes this format:

Launchkey {KEYS TO SEND} {APPLICATION TO RUN} {APPLICATION PARAMETERS}
e.g. Lanchkey "Here is some text." "Notepad.EXE" "C:MyFile.TXT"

You can send all the normal key character keys as well as special keys like ALT, CTRL, F1-F12 etc.