FOR IMMEDIATE RELEASE CONTACT: Cyndi Yuchas 1.817.478.5070
e-mail: yuchas@thursby.com

Thursby Ships DAVE 2 - First Complete Windows NT to Mac OS Solution

ARLINGTON, TEXAS--December 29, 1997--Thursby Software Systems, Inc.
(Thursby Software) will begin shipping DAVE V2.0 during the Macworld Expo
in San Francisco next week. DAVE is the first complete Microsoft Windows
connectivity solution for the Macintosh. The introductory price for this
enhanced offering is $119.00, with a March 1 retail price of $149.00.

DAVE is the only Macintosh-based TCP/IP software product for connecting a
wide range of Microsoft-based computers with the Mac OS -- including NT
(Server and Workstation), Windows for Workgroups and Windows 95 systems.
DAVE V2.0 adds many new features to the product. The number one feature is
full peer-to-peer support. This new version allows Wintel PCs full access
to Macintosh files and PostScript printers for file and printer sharing. In
addition, DAVE 2.0 gives Macintosh users the ability to connect to other
Macintosh users over TCP/IP instead of AppleTalk.

DAVE allows Windows NT and Windows 95 to share the Macintosh resources as
easily as it would be with another NT or Windows 95 systems, since DAVE
"speaks" the same standard network protocols (SMB and CIFS) as do all of
the Microsoft systems. DAVE requires no modifications to any of the Windows
95 or NT systems in order to share the different resources.

Bill Thursby, company president, states that "Apple's customers need to
coexist with the Microsoft networks that are becoming a standard part of
the infrastructure of most companies. The traditional solution of forcing
an AppleTalk solution onto the PC users is a lost battle. The industry has
standardized on TCP/IP as the transport of choice and DAVE just builds on
those standards."

DAVE V1.0 has been available since November 1996. Thursby Software is
providing current DAVE customers access to a free upgrade over the Internet
in January. An evaluation of DAVE is available on their web site.

Thursby Software Systems, Inc. of Arlington, Texas, has been developing,
supporting and marketing a wide variety of connectivity solutions worldwide
since 1986. Thursby Software products include the original DECnet and LAT
protocol suites for the Macintosh (TSSnet). The company can be contacted
at 1.817.478.5070, by Internet e-mail: sales@thursby.com or www.thursby.com

Cyndi Yuchas
Director of Marketing
Thursby Software Systems, Inc. voice: +1.817.478.5070
5840 W. Interstate 20 fax: +1.817.561.2313
Arlington, Texas 76017 email: yuchas@thursby.com
U.S.A. http://www.thursby.com