For context:

https://learn.microsoft.com/en-us/cpp/cpp/structured-excepti...

> Structured exception handling (SEH) is a Microsoft extension to C and C++ to handle certain exceptional code situations, such as hardware faults, gracefully. Although Windows and Microsoft C++ support SEH, we recommend that you use ISO-standard C++ exception handling in C++ code. It makes your code more portable and flexible. However, to maintain existing code or for particular kinds of programs, you still might have to use SEH.