operating system (VxD) A device driver under Windows3.x/Windows 95 running as part of the kernel and thus

having access to the memory of the kernel and all running

processes as well as raw access to the hardware. VxD's

usually have the filename extension .386 under Windows 3.x

and .vxd under Windows 95. VxD's written for Windows 3.x can

be used under Windows 95 but not vice versa.