Whether you’re streaming from disk, pinging a driver, or ringing the PC speaker, it all rides the same I/O manager. This module teaches you to open any path, translate it into the kernel’s namespace, and push bytes through NtReadFile, NtWriteFile, or custom IOCTLs. You’ll enumerate directories, grab metadata, harness I/O completion ports for speed, and even load a driver-all with pure Native calls. By the finish, “file” will mean much more than what’s on disk: it’s the universal door to any device, physical or virtual, on Windows.