VDD has various meanings in the File Extensions category. Discover the full forms, definitions, and usage contexts of VDD in File Extensions.
A virtual device driver (VxD) is a software device driver that emulates hardware and other devices so that multiple applications running in protected mode can access hardware interrupt channels, hardware resources and memory without causing conflicts. The Vxd was superseded by the Windows Driver Model (WDM) and is now obsolete.
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