Running Prepar3d 4.5. PacSim KSLC. ActiveSky 7044 Beta. ORBX (all of it). Pmdg 737-900. PF3. Windows 10 (all latest patches of course)
Everything was fine and it was running for about 45 minutes of sitting stationary at the gate. Taxiied for departure at 34R. PF3 cleared for takeoff and was entering runway when got an immediate crash to desktop. This is the first crash with this error and I've flown coast to coast - since upgrading. The only thing I've noticed since upgrading to 4.5 is that there are more pauses to load scenery than ever before and this was probably only the 2nd or 3rd crash ever in Prepar3d.
Here are the errors from Windows Event Viewer in sequence:
1. .NET Runtime at 7:07:44pm
Application: Prepar3D.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: exception code c0000005, exception address 00007FF859941068
Stack:
2. Application Error at 7:07:46pm
Faulting application name: Prepar3D.exe, version: 4.5.11.29713, time stamp: 0x5ca56c53
Faulting module name: FSUIPC5.dll, version: 5.1.5.1, time stamp: 0x5c920d17
Exception code: 0xc0000005
Fault offset: 0x00000000000e1068
Faulting process id: 0x605c
Faulting application start time: 0x01d4fe0f105905ae
Faulting application path: D:\Program Files\Lockheed Martin\Prepar3D v4.1\Prepar3D.exe
Faulting module path: D:\Program Files\Lockheed Martin\Prepar3D v4.1\Modules\FSUIPC5.dll
Report Id: 862639c1-8f19-4165-a59a-3c4b163e2dae
Faulting package full name:
Faulting package-relative application ID:
3. Application Error at 7:07:51pm
Faulting application name: Prepar3D.exe, version: 4.5.11.29713, time stamp: 0x5ca56c53
Faulting module name: FSUIPC5.dll, version: 5.1.5.1, time stamp: 0x5c920d17
Exception code: 0xc000041d
Fault offset: 0x00000000000e1068
Faulting process id: 0x605c
Faulting application start time: 0x01d4fe0f105905ae
Faulting application path: D:\Program Files\Lockheed Martin\Prepar3D v4.1\Prepar3D.exe
Faulting module path: D:\Program Files\Lockheed Martin\Prepar3D v4.1\Modules\FSUIPC5.dll
Report Id: 86cc2380-fdf1-42fb-80af-a017408776f7
Faulting package full name:
Faulting package-relative application ID:
Also noticed a lot of Distributed COM errors at the time.