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From: PIRARD%vm1.ulg.ac.be@CUNYVM.CUNY.EDU (Andr'e PIRARD)
Newsgroups: comp.protocols.tcp-ip.ibmpc
Subject: Re: Multiple window Telnet
Message-ID: <9103190419.aa00621@louie.udel.edu>
Date: 19 Mar 91 08:52:35 GMT
References: <psuvm!alc@PSUVAX1.CS.PSU.EDU>
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On Mon, 18 Mar 91 14:44:35 GMT <psuvm!alc@PSUVAX1.CS.PSU.EDU> said:
>Does anyone have any suggestions for a PC setup that would allow multiple
>sessions, with multiple windows to be run on a PC? I can do multiple sessions
>right now with NCSA, but I need the ability to see two session simultaneously.

Quarterdeck distribute a beta test module called DVFTP that acts as a front
end to FTP Software's kernel (TCP). This allows *any* PC/TCP application
to run multitasked under Qd's DESQview.
I have tried it. In addition to possible malfunction, there is a nuisance.
The problem is that FTP's kernel is not reentrant, that DVFTP has to serialize
calls to it and that these calls may loop. Consequently, an app may suspend
another for a while, and, curiously enough, not only a TCP/IP one.
Most noticeable effect is on slow lines or when waiting for the never to come.

A reentrant kernel and replacing loops with DESQview "waits" would be a
right direction towards true TCP/IP under DOS, and I'd like to hear from
FTP Software that they do like it too.
DOS being DOS, multiple tn3270 sessions would save executable code memory too.

Andr'e PIRARD             SEGI, Univ. de Li`ege
B26 - Sart Tilman         B-4000 Li`ege 1 (Belgium)
pirard@vm1.ulg.ac.be  or  PIRARD%BLIULG11.BITNET@CUNYVM.CUNY.EDU