Win32 / C++ developer. (i.e. a dinosaur :)
I answer questions mainly in the winapi tag (which made it a hard slog to 20k let me tell you!)
I'm the main developer of a file manager (yes, there are alternatives to Explorer!) written in 100% C++/Win32 (no framework). Feel free to check it out at my website link.
Win32 tips based on often-asked questions:
GetLastError() unless a function actually fails. If CreateFile doesn't return ERROR_INVALID_HANDLE, the result of GetLastError() is meaningless.char* pointer to a function like CreateFile, casting it to (LPWSTR) isn't going to help.