>  Myself and a buddy are both using QmodemTD.  We wish to be able to
>  shell to DOS when calling each other's computer.
> 
>  The manual doesn't really say much about Doorway so I am using the
>  following batch file:
>       @echo off
>       ctty com%1:
>       command
>       ctty con:
> 
>  What advantages does "ctty" have over "doorway" besides allowing me
>  unlimited time for access to DOS, where doorway (the manual says)
>  will only allow me ten minutes.
 
CTTY has *NO* advantage over DOORWAY other than being free.  DOORWAY 
allows you to drive almost all fullscreen text-mode programs, whether 
they write to the screen via DOS calls, BIOS calls or direct access to 
the video buffer.  CTTY, on the other hand, can send you ONLY output 
that is written to the screen by the relatively slow DOS calls, which 
most of the DOS command processors use but which most more advanced apps 
such as any text editor better than EDLIN do not.
Doorway's modest registration fee does away with that 10 minute limit; 
I allow myself 32767 minutes and haven't come anywhere CLOSE to that yet 
:) .  It was the 2nd piece of shareware I ever registered (right behind 
Qmodem back when John Friel owned it) and it's been worth every penny 
many times over.  A few years back, I ran a BBS 100% remotely on a 
system located 4 towns away.  My partner in that venture, who owned and 
housed the hardware, did the hardware maintenance and backups while I 
did the SysOpping and all the software maintenance.  I even upgraded the 
BBS software to new versions a few times "on the fly" via Doorway ... 
try your luck at THAT with CTTY!
Cheers ...
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