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- QEMMFIX
- -------
-
- QEMM386 5.11 includes support for Windows 3.0 standard and 386 enhanced modes.
- In 386 enhanced mode, a special driver is required for proper operation of
- Windows 3.0. This driver is distributed with QEMM386 as WINHIRAM.VXD.
- QEMM386 is responsible for loading this driver when Windows 3.0 runs in
- Enhanced mode. This means that QEMM386 must be able to locate this file on
- your hard disk. What QEMM386 does is to save the drive and directory name
- that it is loaded from, and later it expects to find WINHIRAM.VXD in the
- same directory.
-
- This causes problems in situations such as on a diskless network workstation
- that boots from a network disk. In such a situation, the network simulates
- a disk drive that looks like a floppy drive to the workstation. This "drive"
- contains the files needed to boot the workstation, including QEMM386.SYS.
- Since QEMM386 will record the drive and directory it is booted from, it will
- actually be recording the name of this temporary "drive" the network has
- created. Later, when Windows 3.0 is run in Enhanced mode, it fails, because
- this temporary drive either no longer exists or is replaced by a real floppy
- disk drive.
-
- QEMMFIX is a patch program that updates the QEMM386 Version 5.11 device driver
- once it has been loaded into memory to correct this problem. It locates the
- buffer in memory containing the filename for WINHIRAM.VXD and changes it to
- a drive, directory and filename you specify. Windows 3.0 will then be able
- to operate in 386 Enhanced mode.
-
-
-
- Symptoms
- --------
-
- Erratic system behavior occurs if you try to load Windows in 386 Enhanced
- mode without the WINHIRAM.VXD driver, ranging from an error message indicating
- Windows is unable to load the 386 Expanded Memory Manager to a memory dump
- displayed on the screen, sometimes with a QEMM386 Exception #13 error.
-
-
-
- When to run QEMMFIX
- -------------------
-
- QEMMFIX should be run as soon as practical after the QEMM386.SYS driver has
- been loaded into memory. On a diskless workstation that is booting from
- the network drive, the ideal location is in the AUTOEXEC.BAT file which the
- workstation boots from. Once QEMMFIX has been run, it is not necessary to
- rerun the program until the workstation is rebooted.
-
-
-
- Method of Operation
- -------------------
-
- QEMMFIX has two command line parameters:
-
- QEMMFIX searchpath [replacepath]
-
- If replacepath is not specified, QEMMFIX will NOT modify any memory location
- but will only perform the search operation and report the location which it
- would update.
-
- QEMMFIX searches through memory for the searchpath specified. searchpath can
- be either the fully qualified filename for WINHIRAM.VXD which would include
- the drive and directory that QEMM386.SYS was loaded from (A:\WINHIRAM.VXD is
- the likely searchpath for diskless workstations) or it may be just the
- filename WINHIRAM.VXD. If just the filename is specified, QEMMFIX will
- display the fully qualified searchpath once it is found, for verification.
-
- QEMMFIX looks for a specific pattern in memory to identify the correct
- location to modify. This pattern works correctly in QEMM 5.11. It has not
- been tested with any other version of QEMM386. Use it with care and
- caution with any other version.
-
- Once QEMMFIX has found the memory location for the searchpath, it will replace
- it with the fully qualified filename specified for replacepath. This must
- include the name of the WINHIRAM.VXD file, too. If you do not provide the
- name of the WINHIRAM.VXD file as part of replacepath, Windows 3.0 will not be
- able to load the driver.
-
- For example:
-
- QEMMFIX winhiram.vxd f:\public\qemm\winhiram.vxd
-
- Will search for the QEMM386.SYS driver in memory and update the searchpath
- for WINHIRAM.VXD with the filename "F:\PUBLIC\QEMM\WINHIRAM.VXD".
-
-
-
- Novell Netware
- --------------
-
- The suggested use of QEMMFIX on a Novell Network is as follows:
-
- This example assumes QEMM 5.11 is installed in the directory SYS:PUBLIC\QEMM
- and that volume SYS: will be mapped to drive F: whenever Windows 3.0 is run.
- Make the appropriate changes to the example if this is not how your network
- is set up.
-
- Copy QEMMFIX.EXE to SYS:LOGIN. In the batch file for the diskless
- workstation, add the line "QEMMFIX WINHIRAM.VXD F:\PUBLIC\QEMM\WINHIRAM.VXD"
- to the batch file the boots the workstation, placing it after the network
- shells (IPX & NETx) have been loaded.
-
- Under DOS 4.01, you can also use the volume name instead of a mapped drive.
- In the example above, you could use:
- "QEMMFIX WINHIRAM.VXD SYS:PUBLIC\QEMM\WINHIRAM.VXD"
-
-
-
- Distribution
- ------------
-
- QEMMFIX is distributed free of charge. There is no cost to use this program
- in any environment as long as it remains unmodified and retains the original
- copyright notice. It may be distributed with any product in its original
- form as a ZIP file, containing this documentation file and the executable.
-
- QEMMFIX is a product of Software Environments, Inc., P.O. Box 690718, Orlando,
- Florida 32869-0718. Written by Doug Swallow, CompuServe ID #72241,100.
- Copyright (C) 1990 Software Environments, Inc. All rights reserved.
-
- Please send any requests for additional information, comments, suggestions, or
- problem reports by CompuServe MAIL, or by U.S. Mail.
-