What Is VxD
What Is VxD
(Virtual Device Driver) A special type of Windows driver that allows Windows to perform functions that cannot be done by applications communicating with Windows in the normal manner.
VxDs run at the most privileged CPU mode (ring 0) and allow low-level interaction with the hardware and internal Windows functions, such as memory management.
Like DOS TSRs, poorly written VxDs can conflict and lock up the system. WIN386.EXE (Win 3.1) and VMM32.VXD (Win 95/98) are the VxD files that provide the primary functions (kernel) in Windows.
It's a very good Idea to copy your Win98 VXD, as it's unique to your system, to a floppy or CD.
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