Other components in the operating system can then call these functions in the same way on all platforms, without regard for the actual implementation.įor example, responding to an interrupt is quite different on a machine with an Advanced Programmable Interrupt Controller (APIC) than on one without. The HAL implements a number of functions that are implemented in different ways by different hardware platforms, which in this context, refers mostly to the chipset.

The Windows Hardware Abstraction Layer (HAL) is implemented in hal.dll. The Hardware Abstraction Layer in the architecture of Windows NT NTDLL.DLL is only used by some programs, but it is a dependency of most Win32 libraries used by programs.

HAL.DLL is a kernel-mode library file and it cannot be used by any user-mode program. This article provides an overview of the core libraries that are included with every modern Windows installation, on top of which most Windows applications are built. The Microsoft Windows operating system supports a form of shared libraries known as ' dynamic-link libraries', which are code libraries that can be used by multiple processes while only one copy is loaded into memory. ( Learn how and when to remove this template message)

JSTOR ( February 2013) ( Learn how and when to remove this template message).

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