
                           MS-DOS [TM] 6.0 users:

MS-DOS [TM] 6.0 comes bundled with a powerful mini-Lan.  In C:\DOS, you 
should observe these files:
                                INTERLNK.EXE  
                                INTERSVR.EXE  

When used on two computers through a null modem, these files provide a 
Client-Server capability that attaches to the Client the disk drives and 
printers of the Server.  Once you establish the Server's logical table in 
INTERSVR.EXE, those drives and printers are accessed from the Client as 
though they were resident in the Client.

First, enter this command in CONFIG.SYS:

                         DEVICE=C:\DOS\INTERLNK.EXE
  
                                     or 

                       DEVICEHIGH=C:\DOS\INTERLNK.EXE

If you have the extra Expanded or Extended memory, you would use the second 
command; otherwise, use the first.  In any case, install that command in both 
computers, then reboot them.  Even though these routines come with MS-DOS 
[TM] 6.0, they appear to be functional in any other version of DOS. 

To understand the options of INTERSVR.EXE, enter this command in DOS:

                                 INTERSVR ?  

After you have entered that command, you will see this text:

============================================================================
Provides serial or parallel file transfer and printing capabilities via     |
redirected drives.                                                          |
                                                                            |
intersvr [drive:[...]] [/X=drive:[...]] [/LPT[:][n | address]]          
    [/COM[:][n | address]] [/baud:rate] [/b]                            
                                                                        
    drive:        Specifies the drive(s) to redirect                    
                  (by default, all drives are redirected).              
    /X=drive:     Specifies the drive(s) to exclude.                    
    /LPT[n]       Specifies a port to scan. (/LPT scans all LPT ports). 
    /LPT[address] Specifies a port address to scan.                     
    /COM[n]       Specifies a port to scan. (/COM scans all COM ports). 
    /COM[address] Specifies a port address to scan.                     
    /BAUD:rate    Set a maximum serial baud rate.                       
    /B            Displays the Interlnk server screen in black and white.   
    /V            Prevents conflicts with a computer's timer.  Specify this 
                  switch if you have a serial connection between computers and
                  one of them stops running when you use Interlnk.      
                                                                        
INTERSVR /RCOPY                                                         
                                                                            |
Copies Interlnk files from one computer to another, provided that the       |
computer's serial ports are connected with a 7-wire null-modem cable.       |
============================================================================



                     ===== Establishing the Server =====

In DOS, on the computer that you wish to operate as the Server, please enter:

                                  INTERSVR 

This command will bring in the defaults of INTERSVR.EXE.  To see the list of 
its available options, you would enter:

                                 INTERSVR ?  

After that, you would enter at the command line your specific options.  One 
example could be:
                          INTERSVR /COM2  D: E: F:

Once INTERSVR.EXE is successfully installed on the Server, you will see the 
menu for the Microsoft Interlnk Server, awaiting connection from the Client.


                     ===== Establishing the Client =====


Once you have established the Server, then go to the other computer.  On this 
second computer, please enter:

                                  INTERLNK

The Client seeks acknowledgement from the Server through the Null Modem.  
Depending on how you established the Server, the Client would begin scanning 
for the Server, then report back to you the "virtual devices" it had created 
from the logical devices of the two computers. 

One possible Client response could be:

============================================================================
    Scanning                                                                |
                                                                            |
    Port=COM1                                                               | 

    This Computer        Other Computer
      (Client)              (Server)
    -------------   -------------------------
      G:    equals    D: (133Mb) MS-DOS_VOL2 
      H:    equals    E: (133Mb) MS-DOS_VOL3               
      I:    equals    F: (135Mb) MS-DOS_VOL4                                |
      LPT2: equals    LPT1:                                                 |
      LPT3: equals    LPT2:                                                 |
============================================================================

Once you see this acknowledgement in the Client from the Server, you can then 
navigate in the Client as though you were in the Server.  In this example if 
you enter virtual drive 'G:' in the Client, you would then be in the logical 
drive "D:" of the Server.  Any DOS commands, such as "COPY" or "DIR", that 
you enter at this point in "G:" would work as before.  Once in "G:", you can 
execute any programs within that virtual drive. 


             ===== RS232 Null Modem Cable Pin Connections =====



9 pin to 9 pin:

5 to 5  Ground
3 to 2  Receive data
2 to 3  Transmit data
8 to 7  Request to send
7 to 8  Clear to send
4 to 6  Data set ready
6 to 4  Data terminal ready
                              

25 pin to 25 pin:       

7 to 7   Ground
2 to 3   Receive data
3 to 2   Transmit data
5 to 4   Request to send
4 to 5   Clear to send
20 to 6  Data set ready
6 to 20  Data terminal ready


9 pin to 25 pin:

5 to 7  Ground
3 to 3  Receive data
2 to 2  Transmit data
8 to 4  Request to send
7 to 5  Clear to send
4 to 6  Data set ready
6 to 20 Data terminal ready
                              


          ===== Bidirectional Parallel Cable Pin Connections =====
                             [DB25, both males]

Client:              Server:

2        to          15

3        to          13

4        to         12

5        to         10

6        to         11

15       to         2

13       to         3

12       to         4

10       to         5

11       to         6

25       to        25   Ground








MS-DOS [TM], INTERLNK.EXE, INTERSVR.EXE, and Microsoft Interlnk Server are 
registered trademarks of Microsoft Corporation.

Any cables that you create using the above Cable Pin Connections are used at 
your risk.  

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