GUEST HELP
October 30, 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
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
Computer hangs when you run Guest
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
8 Using Guest on Other Systems
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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 Tools software.
There are versions of Guest for both Macintosh and PC
systems. Guest for IBM-compatible PC's running Windows 3.1
and/or DOS is described here. If you want to use your drive
on a PC running Windows 95 or on a Macintosh, refer to the
section on "Using Guest on Other Systems" later in this
file.
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.
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."
_________________________________________________________
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.
_________________________________________________________
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 the drive's Installation Guide.
2. Insert the "Install" floppy diskette for Windows/DOS
into 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.
_________________________________________________________
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 your Zip or Jaz
drive through the computer's SCSI host adapter. To provide
Guest with the flexibility to use a variety of host
adapters, the Windows/DOS "Install" diskette that came with
your drive includes ASPI managers for all current Iomega
adapters. 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" diskette for
Windows/DOS to another disk.
The "Install" diskette 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 diskette 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" diskette 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
Jaz jet PCI (PC/Mac model) ADVASPI.SYS
Jaz jet (PC-only model) ASPI8DOS.SYS
Jaz jet ISA ASPIPC16.SYS
Jaz Traveller ASPIPPM1.SYS*
Parallel Port Zip drive ASPIPPM1.SYS*
Zip zoom SCSI Accelerator ASPIPC16.SYS
Zip Card PCMCIA SCSI adapter ASPIPC16.SYS
Zip IDE drive ASPIIDE.SYS
PC1616 adapter ASPI1616.SYS
PC1600 adapter ASPIPC16.SYS
*Some hardware uses ASPIPPM2.SYS rather than
ASPIPPM1.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 line:
rem ASPI=ASPIIDE.SYS /INFO /SCAN
rem ASPI=ASPIPPM1.SYS /INFO FILE=NIBBLE.ILM SPEED= 1
rem ASPI=ASPIPPM2.SYS /INFO FILE=NIBBLE2.ILM SPEED= 1
rem ASPI=ASPI8DOS.SYS /D
rem ASPI=ADVASPI.SYS
rem ASPI=ASPIPC16.SYS /SCAN /INFO
ASPI=ASPI1616.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" diskette 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.
To tell GUEST.EXE which drive letter to use, add the
following option to the GUEST.EXE command line:
letter=[the first drive letter you want Guest to use]
For example, the following command line would tell Guest to
assign "g:" to the first drive it finds to support:
guest letter=g
If you have more that one drive supported by GUEST.EXE, each
additional drive would receive a drive letter following G in
alphabetical order. (When supporting more than one drive,
GUEST.EXE assigns drive letters in order of SCSI ID number
from lowest to highest.)
NOTES:
The Letter option can be used when running GUEST.EXE from a
floppy diskette, or it can be added to the GUEST.EXE command
line in the computer's AUTOEXEC.BAT file. (See Section 7,
"Using Guest as a Permanent Driver" for information on
installing GUEST.EXE in the AUTOEXEC.BAT.)
When using the Letter option, there must be a LASTDRIVE
statement in the computer's CONFIG.SYS file that specifies a
letter later in the alphabet than that used with the Letter
option. If GUEST.EXE is supporting more than one drive, the
LASTDRIVE statement must provide enough drive letters for
all supported drives. If you need detailed instructions on
adding a LASTDRIVE statement to CONFIG.SYS, refer to the
information in Section 5.3, "No drive letter available for
the drive."
_________________________________________________________
Section 5
Solving Problems that may occur when using Guest
_____________________________
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
drives were found, or if Guest tells you that no drive
letters were added, and yet you cannot access your drive,
there is probably a hardware installation problem that is
preventing Guest from locating your Zip or Jaz drive. Refer
to the printed User's Guide that shipped with your drive for
hardware installation troubleshooting information.
_____________________________
Section 5.2
Computer hangs when you run Guest
If the computer hangs when you run Guest, edit the GUEST.INI
file and remove (rem) all ASPI managers except the one you
need to load. If you are using a non-Iomega adapter and
Guest hangs, rem all of the ASPI managers in the GUEST.INI
file and make sure the ASPI manager for the non-Iomega
adapter is correctly installed in the computer's CONFIG.SYS
file. For detailed instructions on editing GUEST.INI to rem
ASPI managers, refer to the instructions in Section 4.2,
"Express Loading Guest."
_______________________________
Section 5.3
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 it is assigned duplicate
drive letters 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.
NOTE: It is recommended that you always use an Iomega driver
(either GUEST.EXE or SCSIDRVR.SYS) to support your Zip or
Jaz drive. If you see two drive letters after running
GUEST.EXE, check your system to make sure a non-Iomega
driver is not supporting your Iomega drive. Note that if
the drive is under BIOS control (either adapter or computer
BIOS), disk removability will not be supported.
______________________________
Section 5.4
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
drives 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, and 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 5.5
Using Guest with non-Iomega ASPI managers
The Guest driver utilizes ASPI managers to communicate with
drives connected through a SCSI host adapter, so the
"Install" diskette for Windows/DOS includes ASPI managers
for current Iomega adapters. If you are using a non-Iomega
host adapter and ASPI manager software, make sure the ASPI
manager is correctly loaded in the computer's CONFIG.SYS
file. This will enable GUEST.EXE to locate any Iomega
drives connected to the adapter. If you need instructions
on installing the ASPI manager software in CONFIG.SYS, refer
to the documentation that came with the adapter.
NOTE: If the adapter does not have an ASPI manager, Guest
will not be able to operate.
_____________________________
Section 5.6
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 Iomega ASPI
managers, refer to the electronic "Installation Manual"
(MANUAL.EXE). You can access the manual from the "Install"
diskette 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 diskette for Windows/DOS. If you create
additional disks for loading Guest, make sure you include
the following files:
GUEST.EXE
GUEST.INI
ASPIPPM1.SYS
ASPIPPM2.SYS
ASPIIDE.SYS
ASPI8DOS.SYS
ADVASPI.SYS
ASPIPC16.SYS
ASPI1616.SYS
NIBBLE.ILM (Required for ASPIPPM1.SYS)
NIBBLE2.ILM (Required for ASPIPPM2.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 your Zip or Jaz drive under Windows 3.1. If you
install Tools software under Windows 3.1 using the SETUP.EXE
program, 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 diskette for
Windows/DOS. If desired, you can select to install only the
driver.
To run the SETUP.EXE program, insert the Windows/DOS Install
diskette 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
diskette is in drive a:), or b:setup (if the Install
diskette 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.
_________________________________________________________
Section 8
Using Guest on Other Systems
In addition to Guest for Windows 3.1/DOS, there are versions
of Guest for Windows 95 and for Macintosh. Use these other
versions of Guest if you ever need to use your Zip or Jaz
drive temporarily on one of these systems.
Windows NT Users: There is not currently a version of Guest
for Windows NT because Windows NT does not yet support plug-
and-play. When connecting a Zip or Jaz drive to a Windows
NT system, refer to the adapter installation instructions in
the NTReadme.txt file on the Windows NT Install diskette
that came with your drive.
To use your drive on a PC running Windows 95:
Connect your drive and use the Guest95 program which is
included on the Windows/DOS "Install" floppy diskette:
1. Insert the Windows/DOS "Install" diskette that came
with your Zip or Jaz drive into the computer's floppy
drive.
2. Open My Computer and double click on the floppy drive
icon.
3. Double click on the icon for Guest95.
Refer to "Help for Guest95" on the Windows/DOS "Install"
diskette for additional information.
To use your drive on a Macintosh:
You can load the Iomega Driver temporarily from any Zip or
Jaz disk that is formatted for Macintosh:
1. Shut down the Macintosh and connect your Zip or Jaz
drive.
2. Turn on power to your drive and insert a Mac-formatted
disk. (This procedure will work only if you use a Zip
or Jaz disk that is formatted for Macintosh.)
3. Start the Macintosh following your normal startup
procedure.
NOTE: The Mac must be using a version of System 7 (up to
7.5.5). If you install Tools software on the Macintosh as
well as on your PC, you can refer to Iomega Guest Help on
the Macintosh for additional information.
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.