Jakobarnholtz wrote on Mar 3^rd, 2015 at 12:07pm:

Hi. Just to let you know. I made a (clean) install of Cs 707 in P3D v2.5 on my new win 8.1 64 bit system with help of Migration Tool from Flightsim Estonia. The antivirussoftware was disabled, and now my 707 Works great WITH undercarriage, sound and lights  :) I tried the same thing with the Tristar, and it worked just as well, but the aircraft crashes the sim, so a lttle more Work is needed. Has anyone any hints regarding the Tristar in P3d?

I tried your method for the 707. Uninstall, clean registry through regedit. So far no luck on getting the landing gear to show. Am I missing anything?