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Thread: fsx ui.dll errors

  1. Default fsx ui.dll errors

    I am getting fsx crashes due to the ui.dll file in fsx. Has anybody else come across this and how did you fix it? I have renamed the ui.dll and run a repair of fsx acceleration but I still get it. Help. running windows 7 home 64 system and just moved fsx to c:/fsx versus in the default location.

  2. #2
    Join Date
    Jan 2007
    Imlay City, Michigan


    Is your error "ui.dll" or "uiautomationcore.dll". I ask because I've never seen, or heard of, ui.dll as the faulting module...Don
    HAF 932 Adv, PC P&C 950w, ASUS R4E,i7-3820 5.0GHz(MCR320-XP 6 fans wet), GTX 970 FTW
    16GB DDR3-2400, 128GB SAMSUNG 830(Win 7 Ult x64), 512GB SAMSUNG 840 Pro(FSX P3D FS9)
    WD 1TB Black(FS98, CFS2&3, ROF, etc.), WD 2TB Black-(Storage/Backup)
    Active Sky Next, Rex4 TD/Soft Clouds

  3. Default

    the event viewer showed faulting module as fsx/ui.dll not uiatumationcore.dll

  4. #4
    Join Date
    Apr 2006


    I hadn't heard of it, either - but it's there!
    Here is the dll from my machine, LeeNeed - download it, copy the old one somewhere (just in case...) and put this one in it's place (FSX root folder) It's not zipped.

  5. Default

    thanks for that paul. I had previously renamed it to ui.dll.bak and ran a repair to get a new one. That didn't help. Saw somewhere, that having a saved flight as the default causes this, but it never happened before. Only things I have added are fsrealwx lite, and fscaptain, but they don't seem to have a ui.dll. Also have uiautomationcore.dll installed in fsx root folder. Anyway, thanks again paul, will see how that works.

  6. #6
    Join Date
    Apr 2006


    Good enough.. What version of UIAutomationCore.dll do you have - I ask because the correct one is this one below - Ver 6.0.5840.16386.
    Check Properties->Details....... ..and rename it to it's proper name.

    There's one that has been used in the past, too - I think it's all but disappeared, but just check - 6.0.6001.18000. It works, but for a while only.



  7. Default

    I have the latter (18000) installed. while try the other, and see what happens. will rename the one I have just in case. tks much paul for your responses.

  8. #8
    Join Date
    Apr 2006


    Good stuff: Let me know how you make out with the ui.dll.


  9. Default

    If you haven't resolved this yet, you might try updating to the latest version of FSCaptain, 1.4.2, available on the website. Version 1.4 and 1.4.1 had a bug that could cause random FSX crashes if the FCDU was left visible for long periods of time.


  10. Default Ui.DLL

    Quote Originally Posted by fxsttcb View Post
    Is your error "ui.dll" or "uiautomationcore.dll". I ask because I've never seen, or heard of, ui.dll as the faulting module...Don
    I got an error message: See here: My FSX will not start at all!

    Protokollname: Application
    Quelle: Windows Error Reporting
    Datum: 25.02.2014 23:29:11
    Ereignis-ID: 1001
    Ebene: Informationen
    Benutzer: Nicht zutreffend
    Computer: PeterGloor-PC
    Fehlerbucket , Typ 0
    Ereignisname: APPCRASH
    Antwort: Nicht verfügbar
    CAB-Datei-ID: 0

    P1: fsx.exe
    P2: 10.0.61637.0
    P3: 46fadb14
    P4: ui.dll
    P5: 10.0.61637.0
    P6: 46fadb59
    P7: c0000005
    P8: 0003c963

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