What about Click-N-Type or on screen keyboard (https

/onscreenkeyboard.codeplex.com/)?
There are exe files in OnscreenKeyboard\bin and and other places. I don't see how it can be used to input for example a password into a login password field.
A Firefox virtual keyboard addon looks like an option now. Perhaps: https

/addons.mozilla.org/en-US/firefox/addon/keylogger-beater/