Getting the Windows Drivers Directory

Is there an official / proper method of getting Windows’ drivers directory or do you just concatenate "\\Drive开发者_StackOverflow中文版rs" to GetSystemDirectory()?

To be clear, I mean the Drivers directory that is in the system directory (eg System32). Yes, drivers can technically be anywhere, but is there an official way (eg a function) to get this specific directory?

There is no special folder for drivers. The special folders are CSLIDs (see http://msdn.microsoft.com/en-us/library/bb762494(VS.85).aspx.

If it was a special folder then you could use the SHGetSpecialFolderPath (see http://msdn.microsoft.com/en-us/library/bb762204(VS.85).aspx)

It's hard-coded into the kernel, although drivers don't have to be loaded from there. Here's some bits taken from various parts of the I/O subsystem, which loads drivers:

#define SYSTEM32_DRIVERS_DIR        (L"\\System32\\drivers\\")

...

        pathLength = sizeof(L"\\SystemRoot\\System32\\Drivers\\") - sizeof(UNICODE_NULL);
        path = L"\\SystemRoot\\System32\\Drivers\\";
...