I guess this question is mainly for Umberto, but if anyone else knows the answer that'd be great. I did a clean install of everything a few weeks ago and I just installed the SSJ KPHL airport. I installed it outside of the P3D route folder and made an add-on.xml file so it'll work. I basically tried to mimic the FSDT setup and it seems to be working fine. My question is, how does the sim know to read the files in the Effects folder. I notice the FSDT Effects folder is outside of the main sim folder, and I did the same with the SSJ effects, but the add-on.xml only tells the sim where the scenery and textures folder are located. Thanks in advance.