Never had a problem with installing AICarriers in P3Dv4.
Today after installing an add on of FSDT AI Carrers suddenly did not show up anymore
In the add on menu.Uninstalled completely AI Carriers, downloaded again from the RIikooo site
and installed in P3Dv4. AI cartiers was installed in main folder P3Dv4 as folder AICarriers
Fired up the sim but still no AI carriers in add on menu in simulator.
I assume that the entry for "launch addon" is not added to the exe.file in the app.data.roaming.