GUEST HELP
October 2, 1995
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
5 Solving Problems that may occur when using Guest
Guest does not assign a drive letter to the
Zip drive
Duplicate drive letters
No drive letter available for the Zip 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 your
Zip drive on a computer without having to permanently
install the Iomega driver or Zip 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. For
information on Guest for Macintosh, refer to "Iomega Guest
Help" on the "Install" floppy for Macintosh.
When you run GUEST.EXE, it 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 the Zip
drive and provides the Zip drive with a drive letter. Guest
allows you to read files from and write files to your Zip
disks.
In addition to the Zip drive, you can use Guest to support
other Iomega drives, including 5.25 inch Bernoulli drives
and LaserSafe drives, as well as non-Iomega removable SCSI
drives, such as SyQuest drives and magneto-optical drives.
NOTE: When you install Zip 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 Windows
and/or DOS.
Compatible versions of Windows include Windows 3.1 or
3.11, and Windows for Workgroups 3.1 or 3.11.
Compatible versions of DOS include MS-DOS version 4.0
or higher, PC-DOS version 4.0 or higher, and DR/Novell
DOS version 6.0 or higher. To check your version of
DOS, use the DOS VER command.
The drive you want Guest to support must be connected to the
computer before Guest is loaded. If you are using Guest
with a Zip drive, the computer must have a compatible
connection for the Zip drive model you are using.
The Parallel Port model of the Zip drive can be used on
any IBM-compatible PC with a standard parallel port
(printer port).
The SCSI model of the Zip drive requires a SCSI
connection. On most IBM-compatible PCs, a SCSI host
adapter must be installed in the computer to provide a
SCSI connection. If the computer has a non-Iomega SCSI
adapter, check the information under Solving Problems
in this help file before loading Guest.
_________________________________________________________
Section 3
How to Load Guest
Use the following procedure to load Guest to run your Zip
drive:
1. Connect the Zip drive to the computer according to the
instructions in your Zip 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 file.
_________________________________________________________
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.
______________________________
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 the Zip drive
through the computer's SCSI host adapter or parallel port.
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 the Zip 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.
NOTE: Guest loads a single ASPI manager each time it runs.
The ASPI manager selected will be the first one available in
the GUEST.INI file that allows the Guest driver to
communicate with a supported drive.
Use the following procedure to customize your GUEST.INI
file:
Step 1: Copy all files on the Zip "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 disk. 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 Zip drive.
For example, if you routinely use Guest when your Zip 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
Zip zoom SCSI accelerator ASPIPC16.SYS
parallel port Zip drive ASPIPPM1.SYS
PPA-3 adapter ASPIPPM1.SYS
PC1616 ASPI1616.SYS
PC1600 ASPIPC16.SYS
PC800 ASPIPC8.SYS
PC2 ASPIPC2.SYS
PC4 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
drive is connected to an Iomega PC1616 adapter, you would
remark out all ASPI manager lines except the ASPI1616.SYS
line:
rem ASPI=ASPIPPM1.SYS
ASPI=ASPI1616.SYS
rem ASPI=ASPIPC16.SYS
rem ASPI=ASPIPC8.SYS
rem ASPI=ASPIPC2.SYS
rem ASPI=ASPIPC4.SYS
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 Zip "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 typing:
A: <Enter>
MANUAL <Enter>
_________________________________________________________
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 the
Zip drive
5.2 Duplicate drive letters
5.3 No drive letter available for the Zip drive
5.4 Using Guest with non-Iomega ASPI managers
5.5 Drive C: no longer accessible
_____________________________
Section 5.1
Guest does not assign a drive letter to the Zip drive
If you run the Guest program and it informs you that no
drive letters were added, and yet you cannot access the Zip
drive, it indicates that the driver is unable to locate the
Zip drive. This could be due to a hardware installation
problem or the result of two or more SCSI host adapters in
the computer.
Section 5.1.1
Solving Hardware Installation Problems
Guest will not assign a letter to the Zip drive if the data
cable connections are loose or incorrect, or if the drive is
not receiving power. Check the following:
* Make sure the Zip drive is correctly connected to the
computer. A parallel port model of the Zip drive MUST be
connected to an IBM-compatible parallel port (printer port).
A SCSI model of the Zip drive MUST be connected to a SCSI
connection (usually provided by a SCSI host adapter on a
PC). If the Zip drive is connected to a non-Iomega SCSI
host adapter, it must be supported by an ASPI manager which
is installed in the CONFIG.SYS file or the GUEST.INI file.
(See "Using Guest with non-Iomega ASPI managers" later in
this file.)
* Make sure the Zip drive is correctly connected to a
working power supply. If you have an external Zip drive,
try disconnecting the power cable from the Zip drive and
then reconnecting it. (After reconnecting the power, check
that the green power light on the front of the external Zip
drive is ON.) If you have an internal Zip drive, it must be
securely connected to a computer power supply cable as
illustrated in the printed Installation Guide that came with
the drive.
* Make sure all data cable connections are STRAIGHT and
SECURE. If you have an external Zip drive, tighten the
connector screws firmly and evenly on both the connection to
the Zip drive and to the computer. (When connecting a
parallel port Zip drive, the connection to the parallel port
must be very tight on some computers before the computer
will recognize the Zip drive!) If you have an internal Zip
drive, make sure all Pin 1 connections are correct. (Refer
to the printed Installation Guide that came with your drive
for detailed instructions on connecting cables.)
Check the Troubleshooting section in your Zip User's Guide
for a detailed list of problem solving suggestions. Refer
to your Zip Installation Guide for complete instructions on
connecting the Zip drive. After checking your hardware
installation, rerun GUEST.EXE.
If you are using the SCSI model of the Zip drive and two or
more SCSI adapters are present in the computer, you should
also check the problem solving information in the next
section. If your Zip drive is part of a SCSI chain, make
sure that each device in the chain has a unique SCSI ID
number (no duplicates), and that the chain is correctly
terminated. Refer to the printed Zip User's Guide that came
with your drive for more detailed SCSI Guidelines.
If you are using the parallel port model of the Zip drive
and the computer still does not recognize the Zip drive
after you have thoroughly checked the hardware installation,
the computer's parallel port may not be compatible with the
Zip drive. Try installing the Zip drive on a different
computer. If a different computer recognizes the Zip drive,
the problem is probably an incompatible parallel port. If
neither computer recognizes the Zip drive, contact Iomega
Customer Service. Refer to the electronic "Installation
Manual" (MANUAL.EXE) for a complete list of support numbers.
You can access the manual from the "Install" floppy for
Windows/DOS by typing:
A: <Enter>
MANUAL <Enter>
Section 5.1.2
Two or More SCSI Adapters
The Guest program may be unable to assign a drive letter to
the Zip drive when there are two or more SCSI host adapters
in the computer. To solve this problem, you need to edit
the GUEST.INI file which is located on the "Install" floppy
for Windows/DOS, and specify which ASPI manager Guest needs
to use to access the Zip drive.
Use the following procedure:
Step 1: Copy all files on the Zip "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 disk. 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: Locate the ASPI manager line for the SCSI host
adapter being used by the Zip drive.
For example, if your Zip drive is connected to an Iomega
PC1600 adapter, the Guest program needs to load the line
that reads "ASPI=ASPIPC16.SYS". Use the following table to
help you identify the correct ASPI manager line:
Iomega Adapter ASPI Manager
Zip zoom SCSI accelerator ASPIPC16.SYS
parallel port Zip drive ASPIPPM1.SYS
PPA-3 adapter ASPIPPM1.SYS
PC1616 ASPI1616.SYS
PC1600 ASPIPC16.SYS
PC800 ASPIPC8.SYS
PC2 ASPIPC2.SYS
PC4 ASPIPC4.SYS
Step 4: Remark out the ASPI manager lines not needed for
the Zip drive by inserting "rem " at the start of each line.
For example, if your Zip drive is connected to an Iomega
PC1600 adapter, you would need to remark out all ASPI
manager lines EXCEPT the ASPIPC16.SYS line:
rem ASPI=ASPIPPM1.SYS
rem ASPI=ASPI1616.SYS
ASPI=ASPIPC16.SYS
rem ASPI=ASPIPC8.SYS
rem ASPI=ASPIPC2.SYS
rem ASPI=ASPIPC4.SYS
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.
Step 6: Rerun the Setup program from your edited copy of
the Install floppy disk.
NOTE: If you later need to install Zip Tools software on a
different computer, use the original Zip "Install" floppy
diskette.
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 typing:
A: <Enter>
MANUAL <Enter>
_______________________________
Section 5.2
Duplicate drive letters
If you see two drive letters for your Zip drive or other
drive you are using with GUEST.EXE, reboot the computer
immediately. Using your Zip 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 Zip drive on this
system because the Zip drive is already being assigned a
drive letter.
______________________________
Section 5.3
No drive letter available for the Zip 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 for the Zip drive (or other drive you are
connecting with Guest). 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. Use the following
procedure to edit 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
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
your Zip drive and any other drives you may add to your
system. If your CONFIG.SYS file already has a LASTDRIVE
line, change the last drive letter to a letter further down
the alphabet. Do not set the last drive letter to a letter
late in the alphabet, such as X, Y, or Z.
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 the CONFIG.SYS file
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 Zip "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 Zip Install
floppy disk. 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
ASPI1616.SYS
ASPIPC16.SYS
ASPIPC8.SYS
ASPIPC2.SYS
ASPIPC4.SYS
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 the Zip drive under Windows 3.1/DOS. If you
install Zip Tools software using the Setup program on the
"Install" floppy disk 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 drive (or other supported drive),
it loads into the computer's memory and assigns the Zip
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 disk. If
desired, you can select to install only the driver.
To run the Setup program, insert the "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 in the computer's AUTOEXEC.BAT file. For
a detailed manual installation procedure,refer to the
electronic "Installation Manual" (MANUAL.EXE) located on the
"Install" floppy.
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.