Filed by TekInsight.com,Inc.
                                       pursuant to Rule 425 under the Securities
                                       Act of 1933, as amended.

                                       Subject Company: Data Systems Network
                                       Corporation
                                       Commission File No.: 33-336044



FOR MORE INFORMATION, CONTACT:
Melissa Beck
Edelman Public Relations Worldwide
312-240-3376
melissa.beck@edelman.com


                 TEKINSIGHT.COM UNVEILS PHASE 1 UPDATED WEB SITE
             COMPLETELY REDESIGNED AND REFURBISHED WITH INFORMATION,
                 TEKINSIGHT INTRODUCES A NEW WWW.TEKINSIGHT.COM

NEW YORK - JULY 12, 2000 - TekInsight.com, Inc. (NASDAQ: TEKS TEKSW), an
Internet development company that offers software and services based on its
unique Streaming XML(TM) technology, today unveiled its new, updated Web site at
www.tekinsight.com. This site is phase one, as content will evolve and expand
with future TekInsight's business developments. Presently, the site now features
elaborate information on TekInsight's strategic partnerships, affiliates and
subsidiaries, as well as detailed product/e-Service information, including how
to obtain BugSolver and e-Government services from TekInsight.

BugSolver is an Internet-based application failure detection system that
provides IT departments with fast, accurate answers and assistance to users when
a computer or network failure occurs. e-Government Services allows states,
municipalities and government agencies power and flexibility in designing and
implementing custom Internet presence.

Company and investor information, including the latest in news announcements,
can still be found on the site.

ABOUT TEKINSIGHT.COM

TekInsight.com is a world-class Internet development company that offers
software and services based on its Streaming XML(TM) technology, which harnesses
the power of Internet-based information by streaming it into XML and compressing
the format for real-time storage and presentation. TekInsight's customers
include Microsoft, IBM and other Fortune 500 companies. TekInsight.com competes
in the e-support space shared with companies such as Previo, AnswerTeam.com,
Pcsupport.com, Myhelpdesk.com and Rightanswers.com. TekInsight.com competes in
the e-government space shared with companies such as Govconnect.com, NIC
Commerce, ezgov.com, govWorks.com and simplegov.com.

                                      # # #





FORWARD LOOKING STATEMENTS
THIS PRESS RELEASE CONTAINS CERTAIN FORWARD-LOOKING STATEMENTS WITHIN THE
MEANING OF SECTION 27A OF THE SECURITIES ACT OF 1933, AS AMENDED, AND SECTION
21E OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED, WHICH ARE INTENDED TO BE
COVERED BY THE SAFE HARBORS CREATED THEREBY. INVESTORS ARE CAUTIONED THAT
CERTAIN STATEMENTS IN THIS RELEASE ARE "FORWARD LOOKING STATEMENTS" WITHIN THE
MEANING OF THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995 AND INVOLVE
KNOWN AND UNKNOWN RISKS, UNCERTAINTIES AND OTHER FACTORS. SUCH UNCERTAINTIES AND
RISKS INCLUDE, AMONG OTHERS, CERTAIN RISKS ASSOCIATED WITH THE OPERATION OF THE
COMPANY DESCRIBED ABOVE, GOVERNMENT REGULATION, AND GENERAL ECONOMIC AND
BUSINESS CONDITIONS. ACTUAL EVENTS, CIRCUMSTANCES, EFFECTS AND RESULTS MAY BE
MATERIALLY DIFFERENT FROM THE RESULTS, PERFORMANCE OR ACHIEVEMENTS EXPRESSED OR
IMPLIED BY THE FORWARD-LOOKING STATEMENTS. CONSEQUENTLY, THE FORWARD LOOKING
STATEMENTS CONTAINED HEREIN SHOULD NOT BE REGARDED AS REPRESENTATIONS BY
TEKINSIGHT.COM, OR ANY OTHER PERSON THAT THE PROJECTED OUTCOMES CAN OR WILL BE
ACHIEVED.

ADDITIONAL INFORMATION AND WHERE TO FIND IT
TekInsight.com filed a Registration Statement on SEC Form S-4 in connection with
the merger of TekInsight.com and Data Systems on May 1, 2000 (SEC file #
33-336044), and TekInsight.com and Data Systems expect to mail a Joint Proxy
Statement/Prospectus to shareholders of TekInsight.com and Data Systems
containing information about the merger. Investors and shareholders are urged to
read the Registration Statement and the Joint Proxy Statement/Prospectus. The
Registration Statement and the Joint Proxy Statement/Prospectus contain
important information about TekInsight.com, Data Systems, the merger, the
persons soliciting proxies relating to the merger, their interests in the
merger, and other related matters. TekInsight and its officers and directors may
be deemed participants in the solicitation of proxies from its stockholders with
respect to the transactions contemplated by the merger agreement and may have an
interest either directly or indirectly by virtue of their security holdings or
otherwise. Information regarding such officers and directors is included in the
Registration Statement and the Joint Proxy Statement/ Prospectus. Data Systems
and its officers and directors may be deemed to be participants in the
solicitation of proxies from stockholders of Data Systems with respect to the
transactions contemplated by the merger agreement and may have an interest
either directly or indirectly by virtue of their security holdings or otherwise.
Information regarding such officers and directors is included in the
Registration Statement and the Joint Proxy Statement/Prospectus. Investors and
shareholders will be able to obtain free copies of these documents through the
website maintained by the U.S. Securities and Exchange Commission at
http://www.sec.gov. Free copies of the Joint Proxy Statement/Prospectus and
these other documents may also be obtained from TekInsight.com by directing a
request to TekInsight.com, Inc., 5 Hanover Square, 24th Floor, New York, New
York 10004, attention: Arion Kalpaxis, telephone: (212) 278-8520.

In addition to the Registration Statement and the Joint Proxy
Statement/Prospectus, TekInsight.com and Data Systems file annual, quarterly and
special reports, proxy statements and other information with the Securities and
Exchange Commission. You may read and copy any reports, statements or other
information filed by TekInsight.com or Data Systems at the SEC's public
reference room at 450 Fifth Street, N.W., Washington D.C. 20549 or at any of the
Commission's other public reference rooms in New York, New York and Chicago,
Illinois. Please call the Commission at 1-800-SEC-0330 for further information
on the public reference rooms. TekInsight.com's and Data Systems' filings with
the SEC are also available to the public from commercial document-retrieval
services and at the Web site maintained by the SEC at http://www.sec.gov