Hi Gary. There is a Wacom Pen driver "wacompen.sys" in System32/drivers. I don't have a Wacom pen, but maybe it comes courtesy of Windows Update? According to "driverquery /FO list /v", wacompen.sys is started manually and its current state is stopped. Apart from this driver, I can't find anything that isn't core Windows or Microsoft 365 functionality.
On a separate note, the one crash I can reproduce reliably --by closing OVR Toolkit after VA2 has executed a Get Choice Input-- does not create an event with the pen thread failure stuff. Possibly it's a totally different cause? In the computer management event log, though not in VoiceAttackFault.txt, there are a couple of messages that I've reproduced below. Hope they are helpful.
1. SOURCE: .NET Runtime. Event ID: 1025. Task Category: None.
Application: VoiceAttack.exe
CoreCLR Version: 8.0.1525.16413
.NET Version: 8.0.15
Description: The application requested process termination through System.Environment.FailFast.
Message: Encountered infinite recursion while looking up resource 'Arg_NullReferenceException' in System.Private.CoreLib. Verify the installation of .NET is complete and does not need repairing, and that the state of the process has not become corrupted.
Stack:
at System.Environment.FailFast(System.String)
at System.SR.InternalGetResourceString(System.String)
at System.SR.GetResourceString(System.String)
at System.NullReferenceException..ctor()
at System.Globalization.CultureInfo.get_CurrentUICulture()
at System.Resources.ResourceManager.GetString(System.String, System.Globalization.CultureInfo)
at System.SR.InternalGetResourceString(System.String)
at System.SR.GetResourceString(System.String)
at System.NullReferenceException..ctor()
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr, Int32, IntPtr, IntPtr)
2. SOURCE: Application Error. Event ID: 1000. Task Category: Application Crash.
Faulting application name: VoiceAttack.exe, version: 2.1.5.0, time stamp: 0x674f0000
Faulting module name: System.Private.CoreLib.dll, version: 8.0.1525.16413, time stamp: 0x846eb4cf
Exception code: 0x80131623
Fault offset: 0x00000000002a5f99
Faulting process id: 0x2078
Faulting application start time: 0x1DBB742FEE96C49
Faulting application path: G:\SteamLibrary\steamapps\common\VoiceAttack 2\VoiceAttack.exe
Faulting module path: C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.Private.CoreLib.dll
Report Id: ac7b68b5-fa1d-4893-b756-838f65ad33e8
Faulting package full name:
Faulting package-relative application ID: