Thread: Device Drivers of Windows NT

There are some various kinds of Windows NT device drivers, and realizing these driver types can assist you measure which drivers you require and which type you choose. Device drivers for Windows NT can go into one of three categories, and these are kernel mode device drivers, virtual device drivers, and GDI device drivers, also called Win32 graphics drivers.

The kind of device driver you will use looks on various several factors. recognizing the various kinds of device drivers for Windows NT can be a great assist if you ever have device driver problems with this system.

Virtual device drivers are often used. These drivers assist the system run an programme for some other operating system, like MS-DOS or Win16. Virtual device drivers let 16 bit applications operate decently by permitting the application approach particular input and output ports.

Virtual device drivers also permit the application to acquire information referring particular device interrupts and other information wanted by the application when the 16 bit application is run on the 32 bit Windows NT.

When a practical device driver is utilized, a procedure is adopted to access the virtual device drivers. If you have Windows NT and you undertake to run a Win16 or DOS application, your system first runs a Win32 console application.

This application is NTVDM.EXE, and it maps out the guest application into the Windows NT procedure address space. This will assign control to the guest application in actual mode. This will permit the guest application to purpose right on your Windows NT computer.