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- DOCUMENT:Q106226 04-NOV-1993 [W_NT]
- TITLE :U.S. Service Pack 1 Overwrites OEM HAL
- PRODUCT :Windows NT
- PROD/VER:3.10
- OPER/SYS:WINDOWS
- KEYWORDS:
-
- ----------------------------------------------------------------------
- The information in this article applies to:
-
- - Microsoft Windows NT operating system version 3.1
- - Microsoft Windows NT Advanced Server version 3.1
- ----------------------------------------------------------------------
-
- SUMMARY
- =======
-
- Your original equipment manufacturer (OEM) provided hardware
- abstraction layer (HAL) can be overwritten by the U.S. Service Pack 1
- for Windows NT and Windows NT Advanced Server version 3.1. If this
- happens, your system may become unstable or may not start. Contact
- your OEM or hardware vendor for more information on your particular
- computer.
-
- MORE INFORMATION
- ================
-
- The HAL is the key to the hardware independence of the Windows NT. For
- some non-standard hardware platforms or symmetric multi-processing
- (SMP) computers, the OEM has provided a special HAL. Some of these
- OEMs included such a HAL in the Windows NT package:
-
- HAL.DL_ Most uniprocessor Intel x86-based systems
- HAL486c.DL_ Intel x86-based PCs with the 486DX step C chip
- HALAST.DL_ AST SMP systems in HCL
- HALCBUS.DL_ Corollary Extended C-bus 486DX2/66 SMP system
- HALMCA.DL_ MicroChannel Architecture systems
- HALNCR.DL_ NCR SMP systems in HCL
- HALOLI.DL_ Olivetti LSX5040
- HALSP.DL_ Compaq SystemPro SMP systems in HCL
- HALWYSE7.DL_ Wyse series 7000I SMP systems
-
- During text-mode setup, by the type of computer you choose, Setup
- determines which HAL to use. At this time you would choose the Other
- option so that Setup prompts you for the OEM-provided HAL. Regardless
- of the HAL used, Setup renames it to HALL.DLL. If you have an SMP
- computer, NTKRNLMP.EXE is used and renamed to be NTOSKRNL.EXE. If you
- do not have an SMP computer, the normal NTOSKRNL.EXE is used.
-
- The Update program checks the SETUP.LOG file to see which files need
- to be updated. If it detects that a the HAL was updated by an OEM, it
- overwrites the HAL. This can result in additional processors not being
- used or your system not booting.
-
- If you experience this problem, please contact your hardware vendor. A
- possible workaround would be to make a backup copy of the HAL.DLL
- file. After the Update program finishes, copy the old HAL back over.
- In any case, contact your OEM for more information on specific
- considerations for your computer.
-
- Additional reference words: 3.10 update
- KBCategory:
- KBSubCategory: STP
-
- =============================================================================
-
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-
- Copyright Microsoft Corporation 1993.