gflags debugging

Question

gflags debugging

熙铭徐 41

Opening the application after applying with gflags prompts the following
Startup error
Visual Studio Unregistered UnNotified When an unhandled exception occurs in the native application, please fix the installation or run vsjitdebugger.exe /regserver

I select debugger and fill in vsjltdebugger.exe (Image File)
Why is this error displayed and what should I do?

Tianyu Sun-MSFT 34,686 Reputation points Microsoft External Staff

2022-12-30T12:58:57.693+00:00
Hi @熙铭徐 ,

Welcome to Microsoft Q&A forum. How did you apply with gflags, if the error is reproducible, could you share us the detailed steps to reproduce this issue? Besides please try following:

Open VS Installer > More > Repair.

Try to open a command prompt, for example CMD, and run vsjitdebugger.exe /regserver.

Try to update Visual Studio to the latest version.
BTW, are you using Visual Studio 2022?
熙铭徐 41 Reputation points

2023-01-03T01:22:21.787+00:00

g]1

I used method 2,3 you gave me, but it didn't work. Now I can't use it well to repair that function. The picture above is about gflag set by me, and there are pictures with errors reported
熙铭徐 41 Reputation points

2023-01-03T01:25:08.697+00:00

I'm using Visual Studio 2017

I used method 2,3 you gave me, but it didn't work. Now I can't use it well to repair that function. The picture above is about gflag set by me, and there are pictures with errors reported

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Tianyu Sun-MSFT 34,686 Reputation points Microsoft External Staff

2022-12-30T12:58:57.693+00:00

Hi @熙铭徐 ,

Welcome to Microsoft Q&A forum. How did you apply with gflags, if the error is reproducible, could you share us the detailed steps to reproduce this issue? Besides please try following:

Open VS Installer > More > Repair.

Try to open a command prompt, for example CMD, and run vsjitdebugger.exe /regserver.

Try to update Visual Studio to the latest version.
BTW, are you using Visual Studio 2022?
熙铭徐 41 Reputation points

2023-01-03T01:22:21.787+00:00

g]1

I used method 2,3 you gave me, but it didn't work. Now I can't use it well to repair that function. The picture above is about gflag set by me, and there are pictures with errors reported
熙铭徐 41 Reputation points

2023-01-03T01:25:08.697+00:00

I'm using Visual Studio 2017

I used method 2,3 you gave me, but it didn't work. Now I can't use it well to repair that function. The picture above is about gflag set by me, and there are pictures with errors reported

Answer 1

Hi @熙铭徐 ,

Please open VS Installer > Find Visual Studio 2017 > click Modify > Individual components > search Just-In-Time debugger and make sure that it was checked and installed. If it was not checked, please check it and install it. If it was checked/installed, please try to reinstall(uncheck > check again) it.

Please also check the Windows Registry. Press Windows key + R > type regedit > Ok > navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\AeDebug\Debugger and make sure that the "debugger" key exists. Please also check this directory: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AeDebug\Debugger.

Besides, it worth trying to repair VS(VS Installer > find VS 2017 > More > Repair). Normally the JIT debugger should be installed together with VS and work by default without setting other configurations. If the error persists, I would suggest you try to reinstall VS 2017(If it is acceptable).

BTW, there was a known issue, not sure if it affects the debugger on your side. You can try to add a Windows Registry key in this directory Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AeDebug (right-click in white space > New > DWORD 32-bit Value) and rename it as Auto, set the value=1(right-click > Modify > Value data).

Please feel free to let me know if above suggestions work.

Best Regards,
Tianyu

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熙铭徐 41 Reputation points

2023-01-04T01:25:24.77+00:00

Thanks for your advice, I tried to fix my VS and added Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AeDebug Auto value 1 in the registry, - VS not registering to receive notifications when an unhandled exception occurs in a native application is now not reported and can be used as normal

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