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Pmdg 777-300Er Raas Schema.ini Missing!

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Hello everyone,


I have just purchased the 777-300ER expansion pack from PMDG (wonderful product by the way). However, I have a small problem: RAAS will not work because my schema.ini file is missing. I'm getting that error message on the FSX startup screen. I have already tried running the MakeRunway add on, but it still does not fix the problem. How do I solve this issue?


I've also tried repairing my PMDG 777 LR and 777-300ER installation, but to no avail. RAAS menu DOES appear in my FSX menu, so I know for a fact that can't be the issue.


Can anyone help me???? :( :( :(


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Try re-installing the PMDG 777.  (Uninstall first).


Another user reported this and they solved it by re-installing the PMDG 777.

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Copy to notepad, rename SCHEMA.ini and paste into FSX main. Enable RAAS in thre Add-ons menu and it should be good.



Col1=ICAO Text
Col2=Rwy Long
Col3=Latitude Double
Col4=Longitude Double
Col5=Altitude Long
Col6=HeadingMag Single
Col7=Length Long
Col8=ILSfreq Single
Col9=Width Long
Col10=MagVar Single
Col11=CentreLatitude Double
Col12=CentreLongitude Double
Col13=ThresholdOffset Long

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The problem is if that file was not installed by the PMDG 777 installer, he may be missing other files as well that we don't know about.


I suspect he may have had a write permission issue going on when he installed the PMDG.



Best solution is a re-install, but ensure nothing is running that could interfere with the install.


  • FSX closed.
  • Anti virus off.
  • Admin rights.

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