Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!hplabs!hp-sdd!ncr-sd!ncrcae!heath
From: heath@ncrcae.Columbia.NCR.COM (Robert Heath)
Newsgroups: comp.protocols.misc
Subject: Re: Looking for info/source for XPC protocol
Message-ID: <5425@ncrcae.Columbia.NCR.COM>
Date: 1 Dec 89 14:34:18 GMT
References: <18429@bellcore.bellcore.com>
Reply-To: heath@ncrcae.Columbia.NCR.COM (Robert Heath)
Distribution: na
Organization: NCR Corp., Engineering & Manufacturing - Columbia, SC
Lines: 35

In article <18429@bellcore.bellcore.com> daniel@wind.UUCP (Daniel W Nachbar) writes:
>I'm looking for information about a protocol called XPC.
>I'm told that it was developed by Tymenet and that the protocol
>spec is widely available along with some source code.

Dan,
	A couple of years ago, I looked into X.PC with the expectation of
porting it to UNIX.  I was disappointed. The former X.PC product manager,
Steve Kim, told me that UNIX was not TYMNET's market for X.PC.

The goal of X.PC is not so much peer-to-peer to communications 
but error-free, interactive use between a PC user and TYMNET.
It's there to sell TYMNET connect time.

Though Tymnet has X.PC well-documented and gives away PC source for 
a nominal charge, ($25-$50), you get client source but not *server* source.
You may find it does little more than network you to TYMNET, MCI mail, 
and Western Union.  It's not a stripped-down version of X.25
like some people think it is.  If you want reliable, interactive async
communications, consider getting error-correcting modems.

	Here's my last mailing address for the source:

	X.PC Distribution
	McDonnel Douglas Center
	2560 North First Street
	San Jose, CA 95161

	The last number I had for Steve Kim was 408-922-7568. I don't know
	who answers there now.

	Best of luck,
	Robert Heath

The above are my personal opinions only.


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