Can i add a new airplane to the demo version ?

i want to add a new airplanes to my fsx demo.C:\Program Files\Microsoft Games\Microsoft Flight Simulator X demo\SimObjects\airplanes
can anybody help me to do that ... i was lookin for the original airplanes files to add in my fsx demo but i couldn't find it .

Anonymous wrote:

i want to add a new airplanes to my fsx demo.C:\Program Files\Microsoft Games\Microsoft Flight Simulator X demo\SimObjects\airplanes
can anybody help me to do that ... i was lookin for the original airplanes files to add in my fsx demo but i couldn't find it .

I don't have the demo any longer but they should go into the aircraft section of the simobjects folder.