Thanks
What I meant is after reinstalling gsx2, I start P3D5 in the normal way.
I start a flight , GSX2 is Ok and appear in the P3D menu. After the flight ( 1 or 2 it depends ). I stop P3d5 by clicking on the exit button.
If I use my computer the same day or another day ( Turned off from last flight), I start p3D5 , select plane and airport, everything load normally. However , when I go to addon in P3D5 menu to use the GSX2, GSX2 is not there.
All other addons are there except GSX2. So I exit p3D5, remove GSX2 via windows uninstall, reinstall GSX2, live update is run automatically.
restart P3D5, go to addons menu, GSX2 is there.
I don't have problem with other addons such as FSUIPc, FS2crew UGCX, Utlive, RAAS, etc.. they are start at each P3D5 start.