FSX is crashing when running Windows XP/Vista/7/8/10-64 in free flight and MP Sessions. Is there a fix ?

The issue is fixed in two easy steps :

Step 1 : Download UIAutomationCore.dll

Step 2 : Unpack the ZIP file and place the extracted UIAutomationCore.dll in the root of your FSX installation folder where the file fsx.exe resides. Make sure FSX is not running.

After this action, start FSX and you will find that switching views in FSX, no longer eventually causes FSX to crash.

Without this fix, FSX will hang as well as you will be “timed out” in a multi player session. Do not use any other versions of UIAutomationCore.dll, since this version is the only version that will stop the crashes.