Using Windows 10 and Flight 18.104.22.168063 Installing FTK 1.1.28 and vc_redist.x86 FTK in nonGFWL mode: works, download of RED TAILS P-51 is OK but Flight do not start! (abort the Flight windows using task manager). It start using OfficialGFWL mode. The question is: can we use both modes, nonGFWL and Official GFWL? Note: installing the Beech Baron 58 using FTK 1.1.28 works well. Thanks to all for these nice tools and addons.