Hi,I installed FSX on a separate internal hard drive (J:), i.e., not on my C: drive with Windows XP. (I created a new Program Files directory in my J: drive to install FSX.) After installing, I noticed that I don't have an AIRCRAFT folder among the FSX files....so I couldn't figure out where to put add-on aircraft. I guess I could always try a reinstall, but I wanted to check first to see if this is a common problem?thanks,Jason

Jason,There is no /Aircraft folder in FSX - the now reside in /SimObjects/AirplanesCheers,S

Jason,as an "add-on" to Sierra-Delta's comment...you may put your addons in separate folders for control if you wish; you just have to tell FSX where to find them.Here is where my add-on AC and imported FS9 ai reside:SimObjectPaths.6=AddonAircraftSimObjectPaths.7=AIAircraftMake any folders you want and add the pointer entries to the area in FSX.cfg where the original 5 entries are found.Loyd

Ok, great! Thanks to both of you for the helpful information. I was having a hard time determining the specific changes that took place in the directory structure and file formats from FS9 to FSX.