GUEST HELP
April 12, 1996
Contents
Section# Topic
1 What is Guest?
2 System Requirements for Guest
3 How to Load Guest
4 Advanced Loading Options
Loading Guest into Upper Memory
Express Loading Guest Memory
Assigning Specific Drive Letters with
GUEST.EXE.
5 Solving Problems that may occur when using Guest
Guest does not assign a drive letter to your
drive
Duplicate drive letters
No drive letter available for the drive
Using Guest with non-Iomega ASPI managers
Drive C: no longer accessible
6 Required Files for Using Guest
7 Using Guest as a Permanent Driver
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Section 1
What is Guest?
Guest is a portable driver program that lets you use an
external Zip or Jaz drive on a computer without having to
permanently install the Iomega driver or the Tools software.
There are versions of Guest for both Macintosh and PC
systems. Guest for IBM-compatible PCs running Windows 3.1
and/or DOS is described here. If you are using Windows 95,
refer to Help for Guest95 on the Windows/DOS "Install"
floppy. If you use both Macintosh and PC systems and you
want to run Guest on both platforms, you can obtain
information on Guest for Macintosh by referring to Iomega
Guest Help on the "Install" floppy for Macintosh.
When you run GUEST.EXE, the Guest driver loads into the
computer's memory and stays there until the computer is
rebooted. While Guest is in memory, it tells the computer
how to talk to your drive and provides the drive with a
drive letter. Guest allows you to read files from and write
files to your Zip or Jaz disks.
You can use Guest to support other Iomega drives including
5.25 inch Bernoulli drives, and non-Iomega removable SCSI
drives such as SyQuest drives.
NOTE: When you install Tools software under Windows 3.1, it
installs the Guest driver program in the computer's
AUTOEXEC.BAT file so that Guest loads each time the computer
boots. For more information, refer to Section 7, "Using
Guest as a Permanent Driver."
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Section 2
System Requirements for Guest
To run GUEST.EXE, you need a compatible version of DOS
and/or Windows.
Compatible versions of DOS include MS-DOS version 5.0
or higher, and PC-DOS version 6.0 or higher. To
check your version of DOS, use the DOS VER command.
Compatible versions of Windows include Windows 3.1 or
3.11, and Windows for Workgroups 3.1 or 3.11.
The drive you want Guest to support must be connected to the
computer before Guest is loaded.
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Section 3
How to Load Guest
Use the following procedure to load Guest:
1. Connect your drive to the computer according to the
instructions in your drive's Installation Guide.
2. Insert the "Install" floppy disk for Windows/DOS in
the computer's floppy drive.
3. If you are using Windows, you MUST exit Windows
before loading Guest. Select Exit from the Program
Manager's File menu, and click on OK to end the
Windows session.
4. At the DOS prompt, type either "a:Guest" (if the
"Install" floppy is in drive a:), or "b:Guest" (if
the "Install" floppy is in drive b:), then press the
Enter key. If you use Windows, you can restart
Windows after Guest loads.
If you encounter any problems, refer to Solving Problems in
this help file. (The information in this help file is also
found in the text file GUESTHLP.TXT on the Install floppy
disk for Windows/DOS.)
_________________________________________________________
Section 4
Advanced Loading Options
______________________________
Section 4.1
Loading Guest into Upper Memory
Guest can be loaded into upper memory using the DOS LOADHIGH
command, provided an expanded memory manager (such as
EMM386, QEMM, BLUEMAX, or 386MAX) is loaded on the computer.
Refer to your DOS User's Guide for detailed information on
using the LOADHIGH command.
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Section 4.2
Express Loading Guest
Each time the Guest driver loads, it must also load an ASPI
manager so that it can communicate with your drive (Zip or
Jaz) through the computer's SCSI host adapter. To provide
Guest with the flexibility to use a variety of host
adapters, the "Install" floppy for Windows/DOS includes a
complete set of Iomega ASPI managers. As Guest loads, it
tries to load each ASPI manager in turn until it finds one
that allows it to talk to your drive.
Guest can load much more quickly if it does not have to use
this trial-and-error process to find the correct ASPI
manager. If you use Guest routinely with one or two
specific host adapters, you may want to edit the GUEST.INI
file and remark-out the ASPI managers you do not need. Then
Guest will try to load only the ASPI managers for the
adapters you normally use.
Use the following procedure to customize your GUEST.INI
file:
Step 1: Copy all files on the "Install" floppy for
Windows/DOS to another disk.
The "Install" floppy disk is permanently write-protected, so
in order to edit the GUEST.INI file and use the new file to
run the Guest program, you must copy the files to another
disk. You can copy the files to another floppy disk or to
the hard disk on the computer where you will be using the
Guest program. If you need instructions on copying files,
refer to the documentation that came with your Windows or
DOS programs.
Step 2: Locate the GUEST.INI file on your copy of the
"Install" floppy disk and open it using a text editor. The
GUEST.INI file is a text file, so you can use the Notepad in
Windows, the DOS EDIT program, or any other ASCII text
editor to edit it.
Step 3: Identify the ASPI manager line Guest needs to load
to support your drive.
For example, if you routinely use Guest when your drive is
connected to an Iomega PC1616 adapter, the Guest program
needs to load the line that reads "ASPI=ASPI1616.SYS". Use
the following table to help you identify the ASPI manager
line you need to load:
Iomega Adapter ASPI Manager
Parallel Port Zip ASPIPPM1.SYS
PPA-3 Adapter ASPIPPM1.SYS
Zip IDE ASPIIDE.SYS
Jaz Jet ASPI2930.SYS
Zip zoom SCSI Accelerator ASPIPC16.SYS
PC1616 adapter ASPI1616.SYS
PC1600 adapter ASPIPC16.SYS
PC800 adapter ASPIPC8.SYS
PC2 adapter ASPIPC2.SYS
PC4 adapter ASPIPC4.SYS
Step 4: Remark out each ASPI manager line you do NOT need
to load by inserting "rem " at the start of the line.
For the example where Guest is routinely used when the Zip
or Jaz drive is connected to an Iomega PC1616 adapter, you
would remark out all ASPI manager lines except the
ASPI1616.SYS:
rem ASPI=ASPIPPM1.SYS /INFO FILE=NIBBLE.ILM SPEED= 1
rem ASPI=ASPIIDE.SYS /INFO
rem ASPI=ASPI2930.SYS /D
rem ASPI=ASPIPC16.SYS INFO
ASPI=ASPI1616.SYS /SCAN /INFO
rem ASPI=ASPIPC8.SYS /SCAN /INFO
rem ASPI=ASPIPC2.SYS /SCAN /INFO
rem ASPI=ASPIPC4.SYS /SCAN /INFO
Step 5: Save the changes to the GUEST.INI file and exit the
text editor.
If you are using an editor that has a variety of file
formats, be sure to save the GUEST.INI file as ASCII text or
DOS text.
NOTE: If you later need to use an ASPI manager which has
been remarked out, simply edit GUEST.INI again and remove
the "rem " at the start of the ASPI manager line, or use the
original "Install" floppy diskette to run Guest.
ASPI Manager Reference: Detailed reference information on
the ASPI managers used by the Guest driver is located in the
electronic "Installation Manual" (MANUAL.EXE). You can
access the manual from the "Install" floppy for Windows/DOS
by going to the DOS prompt and typing:
A: <Enter>
MANUAL <Enter>
______________________________
Section 4.3
Assigning Specific Drive Letters with GUEST.EXE.
GUEST.EXE allows you to specify what drive letter you want
assigned to your drive. You may want to use this feature if
you are running applications from your Zip or Jaz drive, or
if you use your drive as a portable device on other
computers and you want to maintain the same drive letter as
you use on your own machine.
For detailed information and instructions refer to
MANUAL.EXE located on the install floppy diskette for
Windows/DOS.
_________________________________________________________
Section 5
Solving Problems that may occur when using Guest
This section describes solutions for the following problems:
5.1 Guest does not assign a drive letter to your drive
5.2 Duplicate drive letters
5.3 No drive letter available for the drive
5.4 Using Guest with non-Iomega ASPI managers
5.5 Drive C: no longer accessible
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Section 5.1
Guest does not assign a drive letter to your drive
If you run the Guest program and it informs you that no
drive letters were added, and yet you cannot access your
drive, it indicates that the driver is unable to locate a
Zip or Jaz drive. This could be due to a hardware
installation problem. For detailed hardware installation
troubleshooting information refer to MANUAL.EXE located on
your "Install" floppy diskette.
_______________________________
Section 5.2
Duplicate drive letters
If you see two drive letters for a single drive on your
system after running GUEST.EXE, reboot the computer
immediately. Using your drive when duplicate drive letters
are present on the system can result in data loss.
After the computer reboots, do not load GUEST.EXE. You do
not need to use Guest to access the drive on this system
because the drive is already being assigned a drive letter.
______________________________
Section 5.3
No drive letter available for the drive
If all drive letters available for physical drives are in
use on the system, GUEST.EXE will be unable to assign a
drive letter to the drive you want to support. Use the DOS
LASTDRIVE command in the computer's CONFIG.SYS file to
increase the number of physical drive letters. For example,
adding the statement LASTDRIVE=m to CONFIG.SYS will provide
drive letters for ten additional drives after drive C:. The
following procedure provides detailed instructions for
editing the CONFIG.SYS file.
Step 1: Use a text editor to open the CONFIG.SYS file.
You can use the Notepad in Windows, the DOS EDIT program, or
any other ASCII text editor. The CONFIG.SYS file is a text
file located in the root directory on the computer's boot
drive (C:).
Step 2: Add the following line to the end of the CONFIG.SYS
file.
LASTDRIVE=m
This will provide ten additional drive letters for any new
drives you want to add to your system, including your Zip or
Jaz drive. If you do not need all of the drive letters
between d: and m: for physical drives, you can use a letter
earlier in the alphabet in place of the letter m; however,
make sure you provide enough drive letters after e: to
accommodate the drive you are using with Guest and any other
drivers you may add to your system. If your CONFIG.SYS file
already has a LASTDRIVE line, change the last drive letter
to one further down the alphabet. Do not set the last drive
letter to a letter late in the alphabet, such as X, Y, or Z,
as this will use extra memory and prevent access to network
drives assigned these letters on your system.
Step 3: Save the changes to the CONFIG.SYS file and exit
the text editor.
If you are using an editor that has a variety of file
formats, be sure to save as ASCII text or DOS text.
Step 4: Reboot the computer.
Load GUEST.EXE after the computer boots.
Network Users: You may have to relocate your network drive
letter.
Ask your network administrator for help, or refer to the
following instructions:
Your first network drive letter will be the letter following
the one used in the LASTDRIVE statement in your CONFIG.SYS
file. For example, if you used LASTDRIVE=m, the first
network drive letter will be N.
If your network drive letter has changed, applications you
are running from the network (such as Windows or other
applications that reference specific drive letters) may fail
to work correctly unless they are reinstalled or adjusted
for the drive letter change. If you use a batch file to
connect to the network, it will need to be adjusted to the
new drive letter. Your network login script may need to be
revised if it refers to a specific drive letter for your
network drive.
Check the following:
* Edit the Path statement in your AUTOEXEC.BAT file to
correctly reference your new network drive letter.
* Edit any batch files which load shells or applications
from a network (including AUTOEXEC.BAT) to correctly
reference new drive letter assignments.
* Edit your Windows "INI" files and your Windows groups to
correctly reference your new drive letters.
* Check other application setup files. Rerun the setup if
drive letters cannot be edited.
* Check your user login script for references to specific
network drive letters.
Reboot your computer and check your applications.
Applications that do not work with the new drive letter may
need to be reinstalled.
_____________________________
Section 5.4
Using Guest with non-Iomega ASPI managers
The Guest driver utilizes ASPI managers to communicate with
drives connected through a SCSI host adapter. The "Install"
floppy for Windows/DOS includes a set of ASPI managers for
Iomega adapters. If you are using a non-Iomega host adapter
and ASPI manager software, you may need to edit the
GUEST.INI file and add a line for the non-Iomega ASPI
manager. (If the adapter does not have an ASPI manager,
Guest will not be able to operate.)
Use the following procedure to edit the GUEST.INI file:
Step 1: Copy all files on the "Install" floppy for
Windows/DOS to another disk.
The "Install" floppy disk is permanently write-protected, so
in order to edit the GUEST.INI file and use the new file to
run the Guest program, you must copy the files to another
disk. You can copy the files to another floppy disk or to
the hard disk on the computer where you will be using the
Guest program. If you need instructions on copying files,
refer to the documentation that came with your Windows or
DOS programs.
Step 2: Use a text editor to open the GUEST.INI file.
Locate the GUEST.INI file on your copy of the "Install"
floppy diskette. The GUEST.INI file is a text file, so you
can use the Notepad in Windows, the DOS EDIT program, or any
other ASCII text editor to edit it.
Step 3: Add a command line for the non-Iomega ASPI manager.
Use the following syntax:
ASPI=<full path for ASPI manager><ASPI manager filename>
The following line is an example for an ASPI2DOS ASPI
manager which is located in the directory C:\ASPI:
ASPI=C:\ASPI\ASPI2DOS.SYS
If you do not know the path or filename for the non-Iomega
ASPI manager, refer to the documentation that came with the
adapter or ASPI software.
Step 4: Save the changes to the GUEST.INI file and exit the
text editor. If you are using an editor that has a variety
of file formats, be sure to save the GUEST.INI file as ASCII
text or DOS text.
Step 5: Use your edited copy of the "Install" floppy disk to
run the Guest program.
ASPI Manager Reference: Detailed reference information on
the ASPI managers included with the Guest driver is located
in the electronic "Installation Manual" (MANUAL.EXE). You
can access the manual from the "Install" floppy for
Windows/DOS by typing:
A: <Enter>
MANUAL <Enter>
_____________________________
Section 5.5
Drive C: no longer accessible
If you are booting from an Iomega PC1600 or Adaptec adapter,
the ASPI manager for the adapter must be installed in the
computer's CONFIG.SYS file before GUEST.EXE is run. If the
ASPI manager is not installed in CONFIG.SYS when GUEST.EXE
is run, Guest will load the ASPI manager via the GUEST.INI
file, which will cause drive C: to no longer be accessible.
NOTE: The ASPI manager for the bootable adapter must be
loaded before any other ASPI managers in the CONFIG.SYS
file. If you need information on installing ASPI managers,
refer to the electronic "Installation Manual" (MANUAL.EXE).
You can access the manual from the "Install" floppy for
Windows/DOS by typing:
A: <Enter>
MANUAL <Enter>
_________________________________________________________
Section 6
Required Files for Using Guest
All of the files needed to load Guest are present on the
"Install" floppy for Windows/DOS. If you create additional
floppies for loading Guest, make sure you include the
following files:
GUEST.EXE
GUEST.INI
ASPIPPM1.SYS /INFO FILE=NIBBLE.ILM SPEED= 1
ASPIIDE.SYS /INFO
ASPI2930.SYS /D
ASPIPC16.SYS INFO
ASPI1616.SYS /SCAN /INFO
ASPIPC8.SYS /SCAN /INFO
ASPIPC2.SYS /SCAN /INFO
ASPIPC4.SYS /SCAN /INFO
NIBBLE.ILM (Required for ASPIPPM1.SYS)
MODULE.INI
Refer to Section 4.2, "Express Loading Guest," for
instructions on customizing the GUEST.INI file to minimize
the time it takes to load Guest.
_________________________________________________________
Section 7
Using Guest as a Permanent Driver
The Guest program, GUEST.EXE, is also the permanent driver
program for your drive under Windows 3.1. If you install
the Tools software using the SETUP.EXE program on the
"Install" floppy for Windows/DOS, it automatically installs
GUEST.EXE in the computer's AUTOEXEC.BAT file. This causes
GUEST.EXE to run each time the computer boots. If Guest can
locate a Zip or Jaz drive (or other supported drive), it
loads into the computer's memory and assigns your drive a
drive letter. If Guest cannot locate a supported drive, it
does not load.
If you use the Guest program frequently on a particular
computer, you may want to install GUEST.EXE as a permanent
driver on that computer. If Windows is installed on the
computer, the easiest way to permanently install Guest is by
using the Setup program on the "Install" floppy for
Windows/DOS. If desired, you can select to install only the
driver.
To run the SETUP.EXE program, insert the Windows/DOS
"Install" floppy disk into the computer's floppy drive.
Load Windows and choose Run from the Program Manager's File
menu. In the Command Line box, type either a:setup (if the
"Install" floppy is in drive a:), or b:setup (if the Install
floppy is in drive b:), then click on OK or press the Enter
key.
If the computer does not have Windows, you can manually
install GUEST.EXE as the permanent driver in the computer's
AUTOEXEC.BAT file. For a detailed manual installation
procedure, refer to MANUAL.EXE located on your "Install"
floppy diskette.
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.