The gflags.exe utility is provided with the "Debugging Tools for Windows" installation. "Debugging Tools for Windows 10 (WinDbg)" is available at the link below at the time of writing this article. The same application works on Windows versions earlier than Windows 10.
https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/debugger-download-tools
Download and install "Debugging Tools for Windows 10 (WinDbg)".
The installer is for "Windows 10 SDK". You only need to install "Debugging Tools for Windows", which is one of the check boxes when you launch the installer. You can deselect the rest of the options to only install "Debugging Tools for Windows".
Use 32-bit gflags.exe for 32-bit processes and 64-bit gflag.exe for 64-bit processes.
- 32-bit gflags.exe location: C:\Program Files (x86)\Windows Kits\10\Debuggers\x64
- 64-bit gflags.exe location: C:\Program Files (x86)\Windows Kits\10\Debuggers\x86
To enable a stack trace on a process, cd to the pertinent gflags.exe (32-bit or 64-bit) directory, and run the following from the command line:
gflags.exe /i <leaking process name> +ust
Example: To enable a stack trace on mfetp.exe, run the following command:
gflags.exe /i mfetp.exe + ust
To disable a stack trace on a process, cd to the pertinent gflags.exe (32-bit or 64-bit) directory, and run the following from the command line:
gflags.exe /i <leaking process name> -ust
