-- README.TXT --


To install the ZyXEL Parallel Port Interface drivers, insert the 
installation diskette to A-drive.  Choose the Run option from 
the File menu in Program Manager, enter A:SETUP.EXE and click Ok.


The ZyXEL Parallel Port Interface setup program performs the
 following tasks:

1.  It checks if a third party COM/LPT driver is installed on the system.

    SETUP.EXE requires the following entries exist in the SYSTEM.INI 
    file which is found in the Windows directory.

    -- In the [BOOT] section
          comm.drv=comm.drv

    -- In the [386ENH] section
          device=*vcd
          device=*combuff

    If the above entries do not exist in SYSTEM.INI, SETUP.EXE assumes 
    that the a third party communication driver has been installed on 
    the system and quits the installation.  To resolve this issue, you 
    must de-install the third party driver prior to installing the
    ZyXEL Parallel Port Interface.  

    To de-install the third party driver, please refer to the third 
    party reference manual.


2.  It installs the ZyXEL Parallel Port Interface drivers on the system.

    SETUP.EXE installs the following files into the SYSTEM directory 
    in the Windows directory.

    -- ZyXELCom.drv
    -- ZyXELvcd.386
    -- ZyXELbuf.386
    -- ZyXELvpd.386


3.  It installs the ZyXEL Parallel Port configuration program to the
    user selected directory on the system.


4.  It copies the SYSTEM.INI file in the Windows directory to
    SYSTEM.ZYX.


5.  It updates the following entries the SYSTEM.INI file:

    -- In the [BOOT] section
       It replaces "comm.drv=comm.drv" with "comm.drv=ZyXELcom.drv".

    -- In the [386ENH] section
       It replaces "device=*vcd" with "device=ZyXELvcd.386".
       It replaces "device=*combuff" with "device=ZyXELbuf.386".

       Depending on if the entry "device=*vpd" exists,
       it adds or replaces with "device=ZyXELvpd.386".

       Depending on if the entry "maxcomport" exists,
       it adds or replaces with "maxcomport=4".


6.  SETUP.EXE restarts Windows to have the changes take effect.



To de-install the ZyXEL Parallel Port Interface drivers, you will 
perform the following tasks: 


1.  Delete the following files into the SYSTEM directory 
    in the Windows directory.

    -- ZyXELCom.drv
    -- ZyXELvcd.386
    -- ZyXELbuf.386
    -- ZyXELvpd.386


2.  Updates the following entries the SYSTEM.INI file
    in the Windows directory.

    -- In the [BOOT] section
       It replaces "comm.drv=ZyXELcom.drv" with "comm.drv=comm.drv".

    -- In the [386ENH] section
       It replaces "device=ZyXELvcd.386" with "device=*vcd".
       It replaces "device=ZyXELbuf.386" with "device=*combuff".

       Delete the "device=ZyXELvpd.386" entry.

       Delete the "maxcomport=4" entry.

3.  Delete the ZyXEL Parallel Port configuration program from the
    user selected directory.