June 17, 20214 yr Hello I have the pmdg 747-400 QOTS-2. Whenever i try to install the 747, the installer says that there is a co-existence failure. I submitted a ticket on the pmdg portal. They said that both registry points out to the same location for two simulators and this will confuse the installers. I use FSX-SE. can anyone help ? Any help will be appreciated Thanks
June 17, 20214 yr Do you (or did you previously) have the FSX boxed edition installed on the machine? If FSX-SE sees registry entries for FSX already in existence when it installs, it creates a separate set of registry entries for FSX-SE. If it doesn't, it puts its registry entry where the non-SE FSX entry would have been. If both exist, they should point to different folders. A reinstall without first doing a complete uninstall might have also left the registry entry in place, which might conceivably drive the installer to add the second set of registry keys when run subsequent to the first installation. It's also possible a registry repair tool may have pointed the FSX entry to your FSX-SE path, which could give you registry entries for the two different sims pointing to the same place, which I believe is the error being flagged. It'll probably require some careful registry editing to remove the second set of keys for FSX-SE (assuming FSX boxed is not also installed). Some Google-Fu should lead to to the location. Making a complete system backup prior to fiddling with the registry is always a good idea, in case you accidentally booger something up. Bob Scott | President and CEO, AVSIM Inc ATP Gulfstream II-III-IV-V Sys1 (MSFS20+24/XPlane12+11): AMD 9800X3D, water 2x240mm, MSI MPG X670E Carbon, 64GB GSkill 6000/30, nVidia RTX4090FE Alienware AW3821DW 38" 21:9 GSync, 2x4TB Crucial T705 PCIe5 + 2x2TB Samsung 990 SSD, EVGA 1000P2 PSU, 12.9" iPad Pro Thrustmaster TCA Boeing Yoke, TCA Airbus Sidestick, Twin TCA Airbus Throttle quads, PFC Cirrus Pedals, Coolermaster HAF932 case Sys2 (P3Dv5/v4): i9-13900KS, water 2x360mm, ASUS Z790 Hero, 32GB GSkill 7800MHz CAS36, ASUS RTX4090 Samsung 55" JS8500 4K TV@60Hz, 3x 2TB WD SN850X 1x 4TB Crucial P3 M.2 NVME SSD, EVGA 1600T2 PSU Fiber link to Yamaha RX-V467 Home Theater Receiver, Polk/Klipsch 6" bookshelf speakers, Polk 12" subwoofer, 12.9" iPad Pro PFC yoke/throttle quad/pedals with custom Hall sensor retrofit, Thermaltake View 71 case, Stream Deck XL button box Sys3 (DCS/P3Dv4/ATS/ETS): AMD 7800X3D, MSI MPG X870E Carbon, Noctua NH-D15S, 64GB GSkill 6000/30, EVGA RTX3090 Alienware AW3420DW 34" 21:9 GSync, Corsair HX1000i PSU, 4TB Crucial T705 PCIe5 + 2TB Samsung 970Evo Plus, TM TCA Officer Pack, Saitek combat pedals, TM Warthog, TM RS300 FF wheel/pedals, Coolermaster HAF XB case
June 17, 20214 yr Author Yes i had fsx boxed edition before. I installed FSX-SE without uninstalling FSX boxed. Then after sometime I uninstalled FSX boxed edition.
June 17, 20214 yr Installing both versions is fine until one of them is removed. Even then, the remaining one should carry on working, unless, as mentioned above, the registry has been amended. Depending upon what the PMDG installer is reading, you will probably need to remove all references to FSX-SE, both in the registry and in the appdata folders. However, as we do not know whether your copy is using the FSX or the FSX-SE folders, you will need to rename one or the other to find out. If it is using FSX folders, then you can delete all the FSX-SE registry entries. The task would be made much easier if you can get PMDG to tell you what their installer looks at to identify the simulators that are installed. Edited June 17, 20214 yr by Reader
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