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1991-08-19
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======================================================================
Microsoft Product Support Services Application Note (Text File)
PD0455: ADAPTEC.SYS Driver
======================================================================
Revision Date: 8/91
Disk Included
The following information applies to Microsoft MS-DOS version 5.0.
--------------------------------------------------------------------
| INFORMATION PROVIDED IN THIS DOCUMENT AND ANY SOFTWARE THAT MAY |
| ACCOMPANY THIS DOCUMENT (collectively referred to as an |
| Application Note) IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY |
| KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO |
| THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A |
| PARTICULAR PURPOSE. The user assumes the entire risk as to the |
| accuracy and the use of this Application Note. This Application |
| Note may be copied and distributed subject to the following |
| conditions: 1) All text must be copied without modification and |
| all pages must be included; 2) If software is included, all files |
| on the disk(s) must be copied without modification [the MS-DOS(R) |
| utility DISKCOPY is appropriate for this purpose]; 3) All |
| components of this Application Note must be distributed together; |
| and 4) This Application Note may not be distributed for profit. |
| |
| Copyright 1991 Microsoft Corporation. All Rights Reserved. |
| Microsoft, MS-DOS, and the Microsoft logo are registered |
| trademarks and Windows is a trademark of Microsoft Corporation. |
--------------------------------------------------------------------
Introduction
------------
The disk provided with this application note contains ADAPTEC.SYS, a
driver program that corrects an interrupt conflict between the
Microsoft MS-DOS version 5.0 EMM386.EXE memory manager and certain
Adaptec hard disk controller cards. These controller cards use
interrupts 60H-67H to store drive tables. Because these are the same
interrupts used by EMM386.EXE to provide memory services, a conflict
arises that causes the system to hang when the hard drive is accessed.
ADAPTEC.SYS corrects this conflict by relocating the drive tables. If
you have an Adaptec controller card and you find that loading
EMM386.EXE causes erratic system behavior, installing ADAPTEC.SYS may
correct the problem.
The ADAPTEC.SYS driver was provided to Microsoft by Adaptec, Inc.
According to Adaptec, the following controller cards require the
ADAPTEC.SYS driver to be compatible with EMM386.EXE:
Adaptec Controller Card Model
-----------------------------
ACB 2370 A,B,C
ACB 2372 A,B,C
ACB 2333 A,B
2322B-8
2322B-16
According to Adaptec, the following controller cards do not require
ADAPTEC.SYS to be compatible with EMM386.EXE:
Adaptec Controller Card Model
-----------------------------
ACB 2310
ACB 2312
ACB 2320D
ACB 2322D
If you have questions about your model of Adaptec controller card and
its compatibility with EMM386.EXE, please contact Adaptec technical
support at (408) 945-2550.
Installing ADAPTEC.SYS
----------------------
1. Insert the enclosed ADAPTEC.SYS Driver disk in floppy disk drive A.
2. At the DOS prompt, type the following command and press ENTER:
copy a:\adaptec.sys c:\
Note: If you are copying ADAPTEC.SYS from a drive other than A,
substitute the appropriate drive letter for a in the above command.
3. Use a file editing program such as MS-DOS Editor or Edlin to modify
your C:\CONFIG.SYS file. (For more information on using Editor and
Edlin, please refer to the "Microsoft MS-DOS User's Guide and
Reference.") At the beginning of your CONFIG.SYS file, add the
following line and save the file:
device=c:\adaptec.sys
Note: ADAPTEC.SYS must be installed in the CONFIG.SYS file before
any MS-DOS device drivers.
4. This completes the installation of the ADAPTEC.SYS driver. You must
restart your computer for the change to take effect.
NOTE: The program included with this application note is manufactured
by Adaptec, Inc., a vendor independent of Microsoft; we make no
warranty, implied or otherwise, regarding this program's performance
or reliability.