Socket Dual Serial I/O PC Card for Windows 9x/NT and DOS
Version 4.0 README.TXT file
(c) Copyright 2000 Socket Communications, Inc. All Rights Reserved

This README file contains important information that supplements
the Dual Serial I/O Card User's Guide.

NOTE: This README may not be able to be read in all text editors.
Please use NotePad or WordPad if you experience any difficulties.

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README TABLE OF CONTENTS

1.0  WHAT'S NEW IN RELEASE 4.0 

2.0  FILE LOCATIONS
     2.1 Windows 9x file locations
     2.2 Windows NT file locations
     2.3 DOS file locations

3.0  RELEASE NOTES

4.0  UNINSTALL PROCEDURES
     4.1 Windows 9x
     4.2 Windows NT 
     4.3 DOS

5.0  TROUBLESHOOTING

6.0  FREQUENTLY ASKED QUESTIONS

7.0  TECHNICAL SUPPORT INFORMATION

8.0  SOCKET'S DIRECT ENABLER FOR DOS

9.0  CD CONTENTS

______________________________________________________________________

1.0  WHAT'S NEW IN RELEASE 4.0

Release 4.0
This release incorporates all the software onto one CD. The software is
updated to support the tuples of the latest hardware. In addition,
standard Microsoft driver files (serial.vxd) are now used

Previous Versions:
Release 3.50
This release separates the software onto two disks; one for Windows
9X/NT and DOS drivers and one for Windows CE.

Release 3.40
This release corrected a minor typo in a dialog box.

Release 3.20
This release fixes a known problem with Windows NT 4.0. Included is
a new Dual Serial Control Panel applet that will run under Windows
9x and NT 4.0.  This product requires third party Card & Socket
Services in order to function under Windows NT 4.0. Softex and
Phoenix both make such a product and both have been tested with the
D-I/O.

You can download a version of Phoenix Card Executive for Windows NT
4.0 from www.socketcom.com/sftxfin.exe or by contacting Socket's
technical support group at techsupport@socketcom.com.

The logging capability available in the previous driver has been
removed since it is no longer necessary.   

Release 3.11
This release adds an enhanced Windows NT 4.0 driver, plus a logging
capability in the NT driver. The Control Panel applet has been
updated to allow turning on or off the event logging. In some cases,
there has been an unidentified problem with the dualio.sys correctly
enabling the card under Windows NT 4.0. If the problem exits, an
error message will appear in the Control Panel applet that says,
"Cannot Detect Com Ports". There is currently no workaround
available for the problem.

Release 3.00
This release includes the addition of DOS Direct Enablers.

Release 2.01
This release corrected a problem where the Dual I/O could not be 
configured by Windows NT 4.0 on some notebooks. The file
DUALIO.SYS was updated.

Release 2.00
This release included a driver for Windows NT 4.0, and fixed the
problem of using COM 5 on Windows 95. There was a new option in
the Control Panel applet which can indicate advanced configuration
information.


2.0  FILE LOCATIONS

2.1 Windows 9x file locations

Windows 95 v950B & Windows 98
   WINDOWS \ SYSTEM \ Dualio.cpl - copied from disk
   WINDOWS \ INF \ OTHER \ DUALIO.INF - created by install

Windows 95 v950
   WINDOWS \ SYSTEM \ Dualio.cpl - copied from disk
   WINDOWS \ INF \ DUALIO.INF - copied by install 

2.2 Windows NT file locations

WINNT \ SYSTEM32 \ Dualio.cpl - copied from disk

2.3 DOS file locations

Files are manually copied to the SOCKETDO directory.


3.0  RELEASE NOTES

This README.TXT file applies to the Dual Serial I/O Installation
Disc v4.0.

3.1 Other known issues:
a) Two Dual I/O Cards will not function simultaneously in the same
   machine under Windows NT 4.0.
b) Socket does not recommend using a serial mouse on either port of
   the Dual I/O Card.
c) Installation of the Dual I/O drivers in Windows NT 4.0 requires
   an administrator login.
d) No COM ports assigned higher than COM 6 are currently supported
   under Windows NT.
e) The System control panel applet displays "Unknown" in the 
   "Expansion Slot" field when a Dual I/O card prior to version "C"
    is used.
f) If you are running two Dual I/O Serial Cards (Rev. H or higher for
   removable cables version and Rev. C or higher for ruggedized 
   version), there are no port conflicts and the ports are assigned
   immediately. There will be a port conflict when using a combination
   of an old (rev A and below) and a new (Rev. H or higher for
   removable cables version and Rev. C or higher for ruggedized 
   version) card. This conflict is resolved by rebooting the system. 


4.0  UNINSTALL PROCEDURES


4.1 Windows 9x Uninstall

DISCLAIMER: In Windows 9x or Windows NT, any time you modify or
delete anything from your system registry, you risk losing important
information. Be sure to back up your current registry files BEFORE
attempting this uninstall. To back up those files:

a) Open a MS-DOS prompt and go to the c:\windows> subdirectory.
b) Type Attrib System.* -h -r -s  and hit <enter>
c) Rename system.dat to system.bak
d) Type Attrib System.* +h +r +s and hit <enter>
e) Cold boot your computer by completely shutting it off and then 
   turning it back on again.

To uninstall Version 2.00 or later, including the current version, of
the Dual Serial Card software, please follow these steps:

a) Go to Start/Run and type in regedit, then press <enter>. This will 
   bring up the registry editor. Within the registry editor you should 
   delete the following keys, if they appear:
b) Go to HKEY_LOCAL_MACHINE/Enum/MF/ and check for Child0000 and 
   Child0001. If Socket's Dual I/O is the only adapter listed under 
   both, remove the folders completely. If there are other multi-
   function adapters listed under each Child folder, simply delete the
   keys for only the Socket Dual I/O.
c) Go to HKEY_LOCAL_MACHINE/Enum/PCMCIA and delete the lines for the 
   Socket Dual I/O Card.
d) Using either a DOS prompt or Windows Explorer, go to Windows/Inf 
   directory. First delete the drvdata.bin and drvidx.bin files. You
   can sort by type to find these easily. Next, if you have Windows 95
   versions 950 or 950A, check the OEM*.inf files and delete the one(s)
   that have reference to the Socket Dual I/O. Or if you have Windows 95
   version 950B or Windows 98, go to Windows/Inf/Other directory and
   delete SocketDualio.INF file.

   Note: to determine your version of Windows 95, go to 
   Start/Settings/Control Panel and double click on System. You should
   see under the heading "System" the version of Windows 95 you have. It
   will either be 4.00.950, 4.00.950A, or 4.00.950B.)

e) Using either a DOS prompt or Windows Explorer, go to Windows/System 
   and delete dualio.cpl.
f) Completely cold boot your computer by shutting it off and then 
   turning it back on again.

4.2 Windows NT Uninstall

DISCLAIMER: In Windows 9x or Windows NT, any time you modify or
delete anything from your system registry, you risk losing important
information. Be sure to back up your current registry files BEFORE
attempting this uninstall. To back up those files:

a) Open a MS-DOS prompt and go to the c:\windows> subdirectory.
b) Type Attrib System.* -h -r -s  and hit <enter>
c) Rename system.dat to system.bak
d) Type Attrib System.* +h +r +s and hit <enter>
e) Cold boot your computer by completely shutting it off and then 
   turning it back on again.

To uninstall Version 3.30 or earlier of the Dual Serial Card
software, please follow these steps:

a) Completely cold boot your computer by shutting it off and then 
   turning it back on again. Do this without the Dual I/O PC Card 
   inserted in the PC Card slot.
b) Using either a DOS prompt or Windows NT Explorer, go to
   WINNT/System32 and delete dualio.cpl.
c) Then go to WINNT/System32/drivers and delete dualio.sys
d) Go to Start/Run and type in regedt32, then press <enter>. This
   will bring up the registry editor. Within the registry editor
   you should delete the following keys, if they appear:
     HKEY_LOCAL_MACHINE\System\ControlSet001\ Services\Dualio
     HKEY_LOCAL_MACHINE\System\ControlSet002\ Services\Dualio
     HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Dualio

   Note: Your HKEY_LOCAL_MACHINE\System\ControlSet00? may vary
   depending on the type of installation you may have. Although as
   many as four ControlSets can appear there are usually only two
   sets. Delete this entry from all ControlSets.
e) Completely cold boot your computer by shutting it off and then 
   turning it back on again.

To uninstall Version 3.4 or later of the Dual Serial Card software,
please follow these steps:

a) Completely cold boot your computer by shutting it off and then 
   turning it back on again. Do this without the Dual I/O PC Card 
   inserted in the PC Card slot.
b) Using either a DOS prompt or Windows NT Explorer, go to
   WINNT/System32 and delete dualio.cpl

If you installed the Phoenix/Softex Windows NT 4.0 Card Services
Software and would like to uninstall this software, please follow
these steps:

a) If you have installed a Socket Ethernet card and the driver is
   loaded go to Control Panel, click on the Network icon
b) Select the Adapters Tab, select the Softex Ne2000 driver
c) Click on Remove
d) Reboot
	
If the Ethernet card driver is not loaded
a) Insert Disk 2 of the Phoenix/Softex Card Services 
b) Select START, Run
c) Type a:\uninstall
d) Follow directions on screen

If you would like to uninstall just the Dual Serial Card software,
but leave the Phoenix/Softex Windows NT 4.0 Card Services Software
on your system, please follow these steps:

a) Select START | Run
b) Type "C:\Program Files\Softex\pccard32\DSERIAL\setup.exe"
c) Press OK to uninstall Dual Serial Port Adapter
d) Dual Serial Port Adapter uninstalled
e) Select OK

4.3 DOS Uninstall

a) Delete all files in the SOCKETDO directory.
b) Remove any changes you may have made to your CONFIG.SYS file or 
   AUTOEXEC.BAT file.


5.0  TROUBLESHOOTING

Please refer to the Dual Serial I/O Card User's Guide for
Troubleshooting Tips.


6.0  FREQUENTLY ASKED QUESTIONS

Q: When do I need to use a direct enabler?
A: When trying to use the Dual Serial I/O card under MS-DOS. 

Q: How can I get custom cables for my Dual I/O Card?
A: Socket offers custom I/O Card cables to OEMs. For information, 
   contact Socket's OEM Account Manager by calling 510-744-2700.


7.0  TECHNICAL SUPPORT INFORMATION

You can contact SOCKET COMMUNICATIONS at:
Socket Communications
37400 Central Court
Newark, CA 94560

You can track new product releases, software updates and technical 
bulletins by visiting Socket's web page at www.socketcom.com.

You are also welcome to call Socket Communications at
(510) 744-2700, or you may FAX inquiries to (510) 744-2727. If you
have technical questions, call Socket's technical support department
at: 510-744-2720 or send e-mail to techsupport@socketcom.com.

8.0  SOCKET'S DIRECT ENABLER FOR DOS

Please see the file ENABLER.TXT on the Dual Serial I/O Card
Installation Disk for information on how to use Socket's direct
enabler.

9.0  CD CONTENTS

ACROBAT READER \
   Acrobat Reader - for Windows 95 & 98 desktops

DOCS \
   DIO Manual.pdf    333,083  03-02-00  5:19p - PDF version of the
User's Guide for Dual Serial I/O Cards.

ENABLERS \
   STARTDIO.BAT       58  06-03-98  08:39a - Loads DOS enabler
   ENABLEDO.EXE   67,899  11-07-97  01:37p - DOS enabler executable
   SOCKETIO.INI	     143  06-03-98  08:38a - DOS initialization file
   ENABLER.TXT    23,428  11-13-98  09:53a - Document detailing the DOS 
enabler

WINDOWS CE \
   Contains information and installation software for Windows CE devices.

DUALIO.CPL   358,400  02-29-00  2:17p - Windows 95 & 98 Control Panel
Applet
DUALIO.INF    16,378  02-25-00  4:02p - Windows 95 & 98 installation
script
README.TXT    15,175                  - This Document