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Logging SimConnect ...
 
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Logging SimConnect (when request by FSUIPC support)

(@fsuipc-support)
Posts: 86
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For some issues, it may be necessary for me to see a SimConnect log file. Here you can find instructions on how to generate such a log file. Note that it is vary rare that I will request such a log file, but it can sometimes be needed (especially for complex connection issues involving other non-FSUIPC clients).

To get a SimConnect LOG file:

Create a file containing these lines:

[SimConnect]
level=Verbose
console=No
file=path to logfile\SimConnect%01u.Log
file_max_index=9
file_next_index=1
 

where you need to replace the "path to logfile" by your particular path where you want to store the log file,

and save this file as Simconnect.ini in your
   - for FSX: My Documents\Flight Simulator X files folder (or, for a non-English Windows or non-English FSX, the folder where FSX stores and loads your saved Flights and Plans).
   - for P3D: <USER>\Documents\Prepar3D v? Files folder (replacing '?' with the P3D version number
   - for MSFS2020 Steam installed versions : <USER>\AppData\Roaming\Microsoft Flight Simulator folder
   - for MSFS2024 Steam installed versions : <USER>\AppData\Roaming\Microsoft Flight Simulator 2024 folder
   - for MSFS2020 MS Store and boxed versions: this will be in one of two places, either
                     <USER>\AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalState
    or              <USER>\AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalCache
    
depending on where your UserCfg.opt file is located and your FLT files are saved.
  - for MSFS2024 MS Store and boxed versions: this will be in one of two places, either
                     <USER>\AppData\Local\Packages\Microsoft.Limitless_8wekyb3d8bbwe\LocalState
    or              <USER>\AppData\Local\Packages\Microsoft.Limitless_8wekyb3d8bbwe\LocalCache
    
depending on where your UserCfg.opt file is located and your FLT files are saved.

  (where <USER> indicates your top level windows home folder)

The Log will be found, after or even during your sin session, in the  specified location.

With the options as shown you will get a file "SimConnect1.Log" first, then on the next session "SimConnect2.Log" and so on, with it cycling to 0 after 9, overwriting previous copies.

If you run the sim in Windowed mode you can, if you wish, set "console=yes" to see a real-time display of what is going on.


 
Posted : November 5, 2025 2:10 pm