From Lovett Software:
I was prompted to create this small Add-on by the fact that Microsoft, after 18 years of providing the Mouse-as-yoke feature, suddenly decided to remove it from their new versions. This feature, whilst being simply a nice touch for most Flight Simulator fans, enabled a small but dedicated group of people, who could not use any form of joystick to fly because of a disability, the means to partake in this hobby. It was primarily for this reason that I felt compelled to reestablish this feature as quickly as I could. This second version has a few changes that make the whole thing work much better. This version is designed to work with Microsoft Flight Simulator 2002 and Microsoft Flight Simulator 2004 - A Century Of Flight.