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Text File
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1994-06-03
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4KB
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71 lines
COMDRIVE.SYS
Com Port Disk Sharing device driver
Version 1.1
(c) 1992 EnterTec, Inc.
THIS SOFTWARE IS BEING DISTRIBUTED AS "SHAREWARE". IT IS NOT FREE. THIS
SOFTWARE MAY ONLY BE DISTRIBUTED WITH THIS UNALTERED DOCUMENT. NO FEES MAY
BE COLLECTED FOR DISTRIBUTION OF THIS SOFTWARE EXCEPTING NORMAL ONLINE
SUBSCRIPTION FEES. TO LEGALLY USE THIS SOFTWARE AFTER A 15 DAY TRIAL PERIOD,
IT MUST BE REGISTERED. SEE THE END OF THIS DOCUMENT FOR REGISTRATION DETAILS.
THIS SOFTWARE IS OFFERED "AS IS" AND ANY LIABILITY IS TO BE ASSUMED BY THE
USER. ENTERTEC AND OR ITS PRINCIPALS' LIABILITY EXPOSURE IS LIMITED TO THE
PURCHASE PRICE OF THIS SOFTWARE.
INTRODUCTION
COMDRIVE is a device driver which allows a PC to share its disk drives with
another PC via the serial port. COMDRIVE works on the background, allowing
system #1 to access system #2's disk drives while system #2 is performing
other tasks (and visa versa). This process is "peer to peer"; each system can
access the other's disk drives. To prevent potential File Allocation Table
(FAT) mishaps, the remote drive in either case cannot be written to.
INSTALLATION
This driver uses a "null modem" cable, commonly available from computer
supply dealers. Unless you have a lot of spare time and parts, don't
bother making one. If you must, this driver requires TX, RX, and GND. If
you don't know what that means, head to Egghead's (not an endorsement) and
pick up a preassembled, professionally made tested cable.
** IMPORTANT **
*** Because Microsoft eliminated the 32MB barrier starting with DOS V4.0, ***
*** MAKE SURE BOTH SYSTEMS USE DOS VERSION 4.0 OR ABOVE, or BOTH use DOS ***
*** versions LESS than 4.0. DO NOT MIX DOS <4.0 with DOS >4.0. ***
Copy COMDRIVE.SYS and SEL.COM to the DOS directory on both systems. Assuming
they are placed in the C:\DOS directory, add the following line to
both CONFIG.SYSes:
DEVICE=C:\DOS\COMDRIVE.SYS 1
(this is for COM1; change the '1' to a '2' for COM2).
To activate the drivers, reboot the systems.
OPERATION
To select one of the remote drives, type "SEL <D>" where <D> is the drive
you desire. For example, to select the remote system's C: drive, type:
SEL C
For floppy drives, the disk must be accessed first by the system that
physically houses the drive. This will allow DOS to determine the media type.
The remote's drive can be used just like any other drive in your system,
except it cannot be written to. It is normal to see the DOS error message
"Write protect error writing drive X:".
When accessing a remote drive, a small "REMOTE" window appears in the upper
right corner of the screen of the remote system (only in text mode).
REGISTRATION
Because this program is fully functional, EnterTec's only protection
in its investment in developing this software is your honesty. Please
become a registered user of this useful utility by sending $10 (US funds) to:
EnterTec, Inc.
PO Box 8858
Richmond, VA 23225
Phone (804) 353-7133
FAX (804) 353-7134
Thanks for your support.