
                           README FILE
                          March 3, 1995
                  Zip Tools Software Version 3.0
     
     Contents
     
     Section  #     Topic
           1   Using the 100MB Zip Tools Disk
           2   Using the Guest Program
           3   Speed Options for the Parallel Port Zip Drive
           4   Installing Zip Support on DOS-Only Systems
                    Iomega Driver
                    Zip Tools
           5   Installation Troubleshooting
                    Duplicate drive letters
                    No drive letter available for the Zip drive
                    GUEST.EXE cannot locate the Zip drive
                    Other problems
                    Special Information for Users of 
                         Adaptec EZ-SCSI
           6   Electronic Manual
           7   CD-ROM Support
           8   Cautions
           9   Pass-Through on the Parallel Port Zip Drive

          
     _________________________________________________________
     Section 1
     Using the 100MB Zip Tools Disk
     
     The 100MB Zip Tools disk included with your Zip drive is a
     special dual-format disk which contains Zip Tools software
     for BOTH Windows/DOS and Macintosh systems.  Before you can
     write any files on the disk, the disk format must be set as
     EITHER Windows/DOS (PC) or Macintosh (which eliminates files
     stored under the other format type).  Running the Zip Tools
     Software Setup program under Windows or the Iomega SCSI
     Install program under DOS automatically sets the Zip Tools
     disk format to Windows/DOS and reclaims the Macintosh
     portion of the disk for use on PC systems.  Similarly,
     running the Zip Install program for Macintosh, sets the Zip
     Tools disk format to Macintosh and erases the PC portion of
     the disk.
     
     If you use your Zip drive on both PC and Macintosh systems
     and want to install Zip Tools on both system types, you need
     to purchase an additional Zip Tools disk for installing Zip
     Tools on your second system.  (See your Zip Accessory Guide
     for ordering information.)
     
     NOTE:  The Zip Tools disk can be used to reinstall Zip Tools
     software on the SAME system type (PC or Macintosh) as the
     initial installation.  Be sure not to delete any of the
     original files from the disk in case you ever need to
     reinstall your Zip Tools software.
     
     
     _________________________________________________________
     Section 2
     Using the Guest Program
     
     The Guest program allows you to use your Zip drive on a
     computer without having to permanently install either an
     Iomega driver or Zip Tools software.  All you have to do is
     connect the Zip drive to the computer and to an Iomega Zip
     power supply, and then run the Guest program from one of the
     "Zip Install" floppies to load the Guest driver.
     
     There are versions of Guest for both Windows/DOS and
     Macintosh systems.  For Windows/DOS systems, run GUEST.EXE
     from the Install floppy.  Refer to the GUESTHLP.TXT file on
     the Install floppy for additional information on using Guest
     with IBM-compatible PC's.  (If you install Zip Tools
     software under Windows, you will find the same information
     in "Guest Help" in the Iomega Zip Tools group.)  
     
     For information on using Guest on Macintosh systems, refer
     to "Guest Help" on the Zip Install floppy for Macintosh.
     
     
     _________________________________________________________
     Section 3
     Speed Options for the Parallel Port Zip Drive
     
     NOTE:  If you are unsure about the information in this
     section, do not attempt to change the transfer speed for
     your Zip drive.
     
     The parallel port model of the Zip drive supports three
     modes of data transfer which have different transfer speeds. 
     To ensure the broadest base of compatibility for the Zip
     drive, the Iomega installation software automatically uses
     the most compatible, but slowest, transfer mode.  In this
     mode, the transfer speed for the Zip drive is about 2MB to
     6MB per minute, depending on the computer's processor speed. 
     To be able to use either of the two faster transfer modes
     supported by the Zip drive, the host computer must meet the
     requirements for the faster mode and be specifically
     configured to use it.
     
     If the computer has a bi-directional parallel port, the Zip
     drive can be set to use a mode which provides data transfer
     speeds of 6MB to 17MB per minute, depending on the
     computer's processor speed.  (If you are not sure whether
     your computer has a bi-directional parallel port, refer to
     the owner's manual that came with your computer.)
     
     The fastest mode supported by the Zip Drive requires a
     special "Enhanced Parallel Port" (EPP) chip set to be
     present on the host computer.  In this mode, the data
     transfer speed for the Zip drive is about 17MB to 22MB per
     minute, depending on the computer's processor speed. 
     Because of the variety of EPP chip sets, and because there
     are some chip sets that mimic a true EPP chip but do not
     support EPP transfers, not all systems with "EPP" can
     support this mode for the Zip drive.
     
     If you believe that your computer has a bi-directional
     parallel port or an EPP chip set, use the following
     procedure to test whether your system will support a faster
     data transfer mode for the Zip drive:  
     
     Step 1:  Locate your installed copy of the GUEST.INI file.
     This file is normally installed in the ZIPTOOLS directory on
     drive C:
     
     Step 2:  Save a backup copy of GUEST.INI so that you can
     reference it if needed in the future.  
     
     Step 3:  Use a text editor to open the GUEST.INI file.  You
     can use the Notepad in Windows, the DOS EDIT program, or any
     other ASCII text editor to edit the GUEST.INI file.
     
     Step 4:  Find the line where ASPIPPA3.SYS is referenced. 
     This line should read something like:
     
          ASPI=ASPIPPA3.SYS SCAN /INFO SL360=NO SMC=NO
     
     Step 5:  Remove the statements "SL360=NO" and "SMC=NO" from
     the line.  The line should now read:
     
          ASPI=ASPIPPA3.SYS SCAN /INFO
     
     Step 6:  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 7:  Reboot the computer.  If Zip Tools software is not
     installed, load GUEST.EXE.
     
     Step 8:  Test communication with your Zip drive as follows: 
     (a) Copy a file from drive C: to your Zip disk.  (b) Read
     the file back from the Zip disk and compare it to the
     original file to make sure the data transfer was accurate.
     
     If communication appears normal, you may see an increase in
     the speed of data transfers.  If this is the case, you're
     done.  Enjoy the enhanced performance of your Zip drive.
     
     If the computer hangs, or if communication to the Zip drive
     does not perform to previously known levels, edit GUEST.INI
     again and change the ASPIPPA3.SYS line to read:
     
               ASPI=ASPIPPA3.SYS SCAN /INFO SL360=NO
     
     Repeat steps 6 through 8 to save the changes to GUEST.INI
     and retest.  If operation is still not normal, restore
     GUEST.INI to its original state.  
     
     
     _________________________________________________________
     Section 4
     Installing Zip Support on DOS-Only Systems
     
     The SETUP.EXE program on the Zip Install floppy disk for
     Windows/DOS runs only under Windows.  If you do not have
     Windows on your computer, you can still use the Zip drive,
     but you will not be able to use the Zip Tools software that
     requires Windows.  This section describes the software
     support for Zip that is installed when you follow the
     software installation instructions presented in the printed
     Zip Installation Guide for systems that do not have Windows.
     
     
     ______________________________
     Section 4.1
     Iomega Driver
     
     Running the INSTALL program from the SCSI directory on the
     Zip Tools disk installs Iomega SCSI software to support your
     Zip drive.  The Iomega SCSI Driver installs as a device
     (SCSIDRVR.SYS) in the computer's CONFIG.SYS file,  and
     because of the way DOS handles drive letter assignments,
     this can shift your existing drive letters.
     
     Iomega software for Zip includes a TSR version of the Driver
     (GUEST.EXE) which will not cause any driver letter shifts
     when it is installed.  Complete comparative information on
     SCSIDRVR.SYS and GUEST.EXE is contained in the Iomega SCSI
     Manual which is included on the Install floppy.  If you
     prefer using the TSR version of the Iomega Driver
     (GUEST.EXE), you can manually install it in your
     AUTOEXEC.BAT file.  Refer to the Iomega SCSI Manual for
     manual installation instructions.  (See Section 6 in this
     file for detailed instructions on accessing the Iomega SCSI
     Manual.)
     
     NOTE:  Iomega SCSI includes optional CD-ROM support.  Refer
     to Section 7 in this guide for additional information on
     installing the Iomega CD-ROM driver.
     
     
     ______________________________
     Section 4.2
     Zip Tools
     
     Iomega SCSI software includes a set of utilities that run
     under DOS.  The Iomega SCSI Utilities handle a number of
     tasks related to using removable SCSI drives and disks,
     including Zip drives and disks.  You can use these utilities
     to set software protection options on your Zip disks, copy
     data to or from Zip disks, format Zip disks, or lock the Zip
     drive so that you can install software to a Zip disk.
     
     You can run the Utilities in an easy-to-use menu mode or
     from the DOS command line.  To start the utilities in menu
     mode, go to the DOS prompt for drive C: (the drive where
     your Iomega SCSI software is installed) and type:
     
                    cd \IOMEGA <Enter>
                    SCSIUTIL <Enter>
     
     If you need help running the Utilities, press <F1> anywhere
     in the Utilities.  Complete reference information on the
     Iomega SCSI Utilities is contained in the Iomega SCSI
     Manual.  (See Section 6 in this file for information on
     accessing the Iomega SCSI Manual.)
     
     
     _________________________________________________________
     Section 5
     Installation Troubleshooting
     
     This section includes problem solving information for the
     following problems:
     
       5.1     Duplicate drive letters
       5.2     No drive letter available for the Zip drive
       5.3     GUEST.EXE cannot locate the Zip drive
       5.4     Other problems
       5.5     Special Information for Users of Adaptec EZ-SCSI
     
     
     _______________________________
     Section 5.1
     Duplicate drive letters
     
     If you see two drive letters for your Zip drive or other
     drive you are using with the Guest driver, 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 the Guest driver. 
     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 5.2
     No drive letter available for the Zip drive
     
     You may see this problem when using the Guest program.  For
     detailed problem-solving information, refer to the
     GUESTHLP.TXT file which is located on the "Zip Install"
     floppy for Windows/DOS.
     
     
     _____________________________
     Section 5.3
     GUEST.EXE cannot locate the Zip drive
     
     If you run the Guest program and it informs you that no
     drive letters were added, and 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.  For detailed problem-solving information,
     refer to the GUESTHLP.TXT file which is located on the "Zip
     Install" floppy for Windows/DOS.
     
     
     _____________________________
     Section 5.4
     Other problems
     
     If you encounter other problems while installing or using
     Zip Tools software or Iomega SCSI, refer to the Iomega SCSI
     Manual for additional problem solving information.  Section
     6 contains detailed instructions on accessing the Iomega
     SCSI Manual.
     

     
     _____________________________
     Section 5.5
     Special Information for Users of Adaptec EZ-SCSI

     Zip Tools software and Adaptec EZ-SCSI can be used together
     on the same system without problems; however, you must tell
     the Adaptec ASPIDISK.SYS device driver to control only the
     devices you want it to support.  If you do not specify the
     devices you want ASPIDISK to control, it will take control
     of your Iomega drives and you will be unable to use your Zip
     Tools software.

     To specify the devices you want supported by your EZ-SCSI
     software, you need to add an ID option to the DEVICE line
     for ASPIDISK.SYS in your CONFIG.SYS file.  Here's an example
     of an ASPIDISK DEVICE line:

               device=c:\scsi\aspidisk.sys /d /pause

     Leave at least one blank space after the last option on the
     line and add an option of the form:  /id=[...].  For
     example:

               device=c:\scsi\aspidisk.sys /d /pause /id=0+1

     This example would tell the ASPIDISK driver to support the
     devices at SCSI ID 0 and SCSI ID 1 on host adapter #0.  (If
     you computer has one host adapter, it is host adapter #0.)

     Here are three other examples of command line syntax for the
     ID option.  The second and third examples assume that the
     computer has two host adapters.

          /id=0+4+6      Support devices at SCSI IDs 0, 4, and 6
                         on host adapter #0

          /id=0+1:4+2    Support device at SCSI ID 0 on host
                         adapter #0.  Support device at SCSI ID 4
                         on host adapter #1.  Support device at
                         SCSI ID 2 on host adapter #0.

          /id=0+1+2+1:1  Support devices at SCSI IDs 0, 1, and 2
                         on host adapter #0.  Support device at
                         SCSI ID 1 on host adapter #1.



     _________________________________________________________
     Section 6
     Electronic Manual
     
     The Zip Install floppy for Windows/DOS includes an
     electronic manual which contains complete installation,
     problem-solving, and reference information for Iomega SCSI
     software.  To access the manual, insert the Install floppy
     in a floppy drive (the example below assumes drive A:), go
     to the DOS prompt, and type:
     
               A: <Enter>
               MANUAL <Enter>
     
     (You can also run the manual from the Windows File Manager
     by selecting drive A: and double-clicking on MANUAL.EXE.)
     
     After your Zip software is installed, you can access the
     manual from the C:\ZIPTOOLS directory (where C: is the drive
     and \ZIPTOOLS is the directory where your Zip Tools software
     is installed).  (Navigating in the manual or printing from
     the manual will be faster from drive C: than from the
     Install floppy.)  To access the manual, go to the DOS prompt
     and type:
     
               C: <Enter>     
               cd \ZIPTOOLS <Enter>
               MANUAL <Enter>
     
     If you have installed Iomega SCSI software, you can access
     the manual from the C:\IOMEGA directory (where C: is the
     drive and \IOMEGA is the directory where Iomega SCSI is
     installed).
     
     
     _________________________________________________________
     Section 7
     CD-ROM Support
     
     Iomega SCSI software includes support for CD-ROM drives. 
     The Iomega SCSI CD-Player driver has been fully tested with
     a wide sample of CD-ROM drives from different manufacturers,
     and most drives showed full compatibility, working with both
     data and audio.  
     
     Use the following procedure if you wish to install Iomega
     SCSI CD-ROM support:
     
     Step 1.  Insert the 100MB Zip Tools disk into the Zip drive.
          
     Step 2.  Insert the "Zip Install" floppy for Windows/DOS
     into the computer's floppy drive.
     
     Step 3.  Run GUEST.EXE from the Install floppy disk.  Note
     the drive letter Guest assigns to your Zip drive.
     
     Step 4.  Run D:\SCSI\INSTALL.EXE where D: is the Zip drive
     letter.
     
     This procedure runs the Iomega SCSI Install program and
     automatically installs the Iomega SCSI CD-ROM driver if the
     CD-ROM drive is CONNECTED at the time of installation and if
     the operating system is MS-DOS 6.0 or higher.  If the CD-ROM
     driver does not install automatically on your system, you
     can install it manually after the Iomega SCSI driver is
     installed.  Refer to Section 2.3 of the Iomega SCSI Manual
     for information on installing the Iomega SCSI CD-ROM driver
     manually.
     
     NOTE:  The Iomega SCSI Driver supports the Zip drive, so you
     will not need to use the Guest driver after Iomega SCSI is
     installed.  To speed up your computer's boot time, you can
     remove or remark out the GUEST.EXE line in your AUTOEXEC.BAT
     file.
     
     
     _________________________________________________________
     Section 8
     Cautions
     
     
     ______________________________
     Section 8.1
     DOS DISKCOPY
     
     CAUTION! 
     When used with removable disks (for example, Zip disks,
     Bernoulli disks, etc.), DOS DISKCOPY does not create a copy
     of the source disk on the target disk.  DOS DISKCOPY
     executes as if copying data from the source to the target
     disk; however, after completion, the target disk is
     unreadable and must be reformatted.  Use an Iomega disk
     copying utility to copy disks (either Iomega SCSI Disk Copy
     or Copy Machine).
     
     
     ______________________________
     Section 8.2
     Compression
     
     Stacker 4.0 works with removable disks supported by
     GUEST.EXE (for example, Zip disks); however, do not reboot
     when Stacker asks if you want to reboot to remove TSR's. 
     Rebooting removes the Guest driver and eliminates access to
     the Zip drive.

     DoubleSpace and DriveSpace do not work with disks supported
     by GUEST.EXE, but they do work the Iomega SCSI driver.  If
     you want to use DoubleSpace or DriveSpace to compress your
     Zip disks or other removable disks, install the Iomega SCSI
     driver in your CONFIG.SYS file to support your removable
     drives.  Refer to the Zip Installation Guide for IBM-compatible PC's for detailed instructions on running the
     INSTALL program from the SCSI directory on the Zip Tools
     disk.  If you use Windows, also install your Zip Tools
     software for Windows by running the Zip Software Setup
     program after installing Iomega SCSI.

     CAUTION! 
     If you are using a compression utility on a removable disk
     (for example, a Zip disk), you should make that disk
     nonremovable (or lock the disk in the drive) whenever the
     compressed volume is mounted.  Removing a disk while the
     compressed volume is mounted could result in lost data.  To
     remove the disk, first unmount the compressed volume, then
     unlock the drive.  Refer to the electronic manual for
     detailed information on locking and unlocking drives.
     
     CAUTION! 
     Do not use any disk compression software to compress
     removable boot disks.


     Iomega SCSI Utilities with Stacker 4.0
     
     When using Stacker 4.0 and Iomega SCSI, mounted, stacked
     drives will not appear on the graphical user interface
     screen for the Iomega SCSI Utilities.  In order to use an
     Iomega SCSI utility on a stacked drive, you must first
     unmount the drive.
     

     ______________________________
     Section 8.3
     Shifting Drive Letters
     
     The following caution applies only if you are installing Zip
     support on a DOS-only system or if you choose to install the
     Iomega Driver, SCSIDRVR.SYS, in your CONFIG.SYS file.
     
     CAUTION! 
     Installing the Iomega SCSI driver may cause your drive
     letters (including network drives) to change.  This could
     affect Windows applications that reference existing drives. 
     Check your Windows groups and "ini" files.  For additional
     information, refer to "Relocating Drive Letters" in the
     electronic manual.


     
     _________________________________________________________
     Section 9
     Pass-Through on the Parallel Port Zip Drive
     
     The Zip parallel port supports printers on the pass-through
     connector; other parallel port devices may or may not work. 
     This problem exists because computer parallel ports were not
     originally designed for devices other than printers.  If you
     try placing a device other than a printer on the Zip pass-through, or place the Zip drive on another device's pass-through, there are no guarantees that it will work
     correctly.  

     In the future there will be a standard for daisy chaining
     devices on the parallel port; when this standard is
     implemented, Iomega will also conform to it.  In the mean
     time, here are some hints that may help the operation of
     your Zip drive and other parallel port devices.

             If you are running in Windows or in a Window's DOS box
              and are seeing performance problems with your printer
              or with other devices that you are trying to place on
              the Zip pass-through, remove ZipWatch from your Windows
              Startup folder and restart Windows.  ZipWatch
              periodically wakes the Zip drive up and checks its
              status, when the Zip drive wakes up, the Zip pass-through is temporarily disabled and this will interfere
              with the operation of the device connected to the Zip
              pass through connector.  This should not affect
              printers other than to slow them down a tiny bit, but
              may interfere with other pass-through devices.

             Some Print Cache programs may conflict with the
              parallel port Zip drive.  If you experience problems
              printing, and Print Cache is already on your system,
              disable the audio warning messages for both Windows and
              DOS using the reinstall procedure in the Print Cache
              manual.  If this still does not resolve the problem,
              please contact your Print Cache Software Technical
              Support.

             If you have other parallel port devices and they will
              not work on the Zip pass-through, or the Zip will not
              work on their pass-through, you may want to think about
              adding an extra parallel port to your computer by
              adding an additional I/O card to your computer.

             If you are seeing problems when you boot your computer
              and you are powering ON your Zip drive before turning
              your computer on, try powering them at the same time by
              hooking them to the same power strip and applying power
              at the power strip.
