I have FS2000 I have recently purchased my first add-on, World Air Simulation, EFIS 2000 NAVDATA. When I install EFIS 2000 it installs EFIS98.exe and not EFIS2000.exe. When trying to run EFIS98 it asks for the orignal CD which I have never had. I have un-installed and then re-installeded both FS2000 and EFIS 2000 but still no joy.This is all rather new to me so any help would be appreciated as World Air Simulation are not responding to my emails.

HaroldWorld Air Simulations went bust. They no longer exist, so the chances of getting any sort of response from them are somewhere between zero and nil!EFIS 2000 is a very old program - where did you buy it?If I were you, I'd ask for a full refund and stay well away from any World Air Simulation products...Sorry to be the bearer of such bad news for you.Toni.