When used in a Visual Studio project, tst.h will simply be added to your list of headers with no need for any additional configuration.

The runtest script in this directory only serves as check that everything works fine with the Microsoft C and C compilers.

If your antivirus is as aggressve as mine, it takes some time before allowing the test programs to run for the first time. You just have to wait a little bit.

I've tested it with cl version 19.37.32825 on PowerShell and the standard CMD shell.