explorer.exe: Exception processing message 0xc0000005 - unexpected parameters. [windows-11-taskbar-styler]

[Dook1]

Exception appears when I restart Windows if "Windows 11 Taskbar Styler" mod is enabled with one of these styles:

systemtray:ImageIconContent > Grid
Padding=1

taskbar:TaskListLabeledButtonPanel#IconPanel > Image
Width=16

taskbar:TaskListLabeledButtonPanel#IconPanel > TextBlock
Margin=-15,0,0,0

Rectangle#RunningIndicator
Visibility=1

And this exception does not occur with other styles. All other mods are disabled. Windows 11 22631.2715

[m417z]

I couldn't reproduce it. Any other ideas about reproducing it?

Also, can you capture a crash dump? You should be able to get it with the following steps:

• Open regedit
• Go to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Windows Error Reporting
• Create a key named LocalDumps
• Create a DWORD value named DumpType with value 2
• Trigger the crash
• Go to the %LocalAppData%\CrashDumps folder, you should see a dump file in there

[Dook1]

The error appears when restarting windows, not when restarting explorer.exe.

Dump is not created for some reason. Although *.dmp files are created when crashing other applications.

An entry in the event log: "Exception Processing Message 0xc0000005 - Unexpected parameters" EventID=26

I found a similar problem in Google - https://github.com/microsoft/PowerToys/issues/16666 . It mentions WinUI3.

[m417z]

OK, so perhaps it's not a crash but just an error message. I couldn't reproduce it with a restart as well (tried with only the first rule).

[Dook1]

I just checked and added the 1st style. An error occurred during reboot.

[m417z]

Have you changed any of Windhawk's advanced settings? Let me know and I'll try to reproduce again. If not, I'm not really sure how to reproduce or fix this issue.

[Dook1]

Yes, I changed it. Process exclusion list: * Process inclusion list: explorer.exe

[m417z]

I tried that, and still couldn't reproduce the issue after a reboot. Perhaps there's something extra in your configuration, let me know if you find a way to reproduce it reliably.

[Dook1]

Maybe it's the Windows version? I have 23H2.

[m417z]

Maybe. I'll try it when I have the chance.

[m417z]

Please try Windows 11 Taskbar Styler v1.2, I changed several things, perhaps it caused the issue to be fixed.

[Dook1]

The error number has changed:

Faulting application name: explorer.exe Faulting module name: KERNELBASE.dll Exception code: 0x20474343 Fault offset: 0x000000000006565c

[m417z]

0x20474343 is a GCC exception. Are you sure that it's related to Windhawk in any way? Windhawk doesn't use GCC.

[Dook1]

If I remove these styles, the reboot goes without error.