FOR IMMEDIATE RELEASE

DEVELOPER CENTRAL PAVILION RETURNS TO, AND NET INNOVATORS PAVILION MAKES
ITS EAST COAST DEBUT AT MACWORLD EXPO/NEW YORK JULY 1999

NEW YORK, NEW YORK — July 16, 1999– Apple Developer Connection, Xplain
Custom Services, and MACWORLD Expo are pleased to announce TWO technical
special interest pavilions at MACWORLD Expo/New York. Developer Central,
sponsored by Apple Developer Connection and MacTech Magazine, makes its
return catering to the Macintosh programmer and developer community. And
this year, Net Innovators, sponsored by Apple Developer Connection and
NetProfessional, makes its east coast debut showing off technologies for
web developers and network administrators.

MACWORLD Expo/New York, July 21-23, 1999, is hosting both pavilions on
the main floor (level three) of the Jacob K. Javits Convention Center.
Developer Central is located at booth 1360. Right next to Developer
Central, is Net Innovators at booth 1461. The pavilions are located in
Hall 3B of the Jacob K. Javits Convention Center.

“Since the launch of iMac, forward-looking developers have realized the
business opportunities available on the Mac platform,” said Clent
Richardson, Apple’s vice president of worldwide developer relations.
“This optimism will carry over to Developer Central and Net
Innovators at Macworld, where Apple’s sponsorship will help get the Mac
message across to the brightest and best application developers, web
developers and network administrators.”

“These pavilions are the focal point at MACWORLD Expo for the technical
attendees seeking out exhibitors with developer and technical
information,” said Neil Ticktin, CEO, Xplain Corporation which manages
the pavilions. “With a mission focused on serving the
developer/technical communities, these pavilions have vendors of all
types and sizes showing off the best the Mac has to offer.”

“Developer Central returns as the ever successful and longest-running
MACWORLD Expo special interest area for developers. Attendees are able to
test the increasing number of hot, new tools and applications and to meet
the experts and developers behind those technologies,” said Nicole
Derany, MACWORLD Expo show director. “We are excited about our two
technical special interest areas – Net Innovators and Developer Central –
and all of our special interest areas. The Special Interest Environments
have always been a successful platform which allows MACWORLD Expo
attendees to test hands-on the latest, hottest technologies and products.”

“MacTech and NetProfessional are proud to co-sponsor the Developer
Central and Net Innovators pavilions at MACWORLD Expo — these specialty
areas are a comprehensive location for the developer community, ” said
Nick DeMello, editor of MacTech Magazine. “If you’re just beginning as a
programmer, developing web content, managing networks, or have been a
part of the developer community for years, you’ll have the opportunity to
meet the experts face-to-face, explore the cutting edge of technology and
will learn about new products for the Mac worldwide.”

At this Macworld, you’ll find our specialty pavilions, Developer Central
(booth 1360) and Net Innovators (booth 1461). Simply look for the signage
above the show floor to help direct you to the pavilions. In addition,
there’s an information area hosted by Apple Developer Connection staff,
and the Depot selling area to get the best deals on products at the show.

For more information on Developer Central or Net Innovators, contact:

Susan M. Worley
Events Manager, Xplain Corporation
susan_worley@xplain.com
(ph) 805/494.9797
(f) 805/494.9798

For more information on MACWORLD Expo, contact

Nicole Derany
MACWORLD Expo Show Director
nderany@macworldexpo.com
(ph) 781/440.2712
(f) 781/440.0364

* * * * * * * * * * * * * *
IDG Expo Management Company
1400 Providence Highway
Norwood, MA 02062

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About Apple Developer Connection

The Apple Developer Connection programs and products offer easy access to
technical and business resources for anyone interested in developing for
Apple platforms anywhere in the world. Developers can take advantage of
the wealth of technical and marketing information
available for free on the ADC web site, subscribe to the Apple Developer
Connection Mailing, purchase technical support, or join one of the
membership programs. See http://www.apple.com/developer/ for more
information.

About Xplain Corporation

Xplain Corporation has three divisions — publishing, mail order and
custom services. The publishing division includes MacTech(r) Magazine
https://www.mactech.com/, and THINK Reference(tm). The mail order
division operates DevDepot(r) http://www.devdepot.com/, Depot
Store(sm), and the Depot(sm). Custom services provides custom publishing
and trade show services including such projects as Developer Central(tm)
and fulfillment services. Founded in 1984, the company has its offices in
Westlake Village, California.

About MacTech Magazine

Established in 1984 as a forum for programmers and developers, MacTech
magazine has evolved into a premier news and information vehicle targeted
at tens of thousands of developers in over sixty countries. In addition
to the new web, networking and content coverage, MacTech continues to
include several regular columns, industry news, conference reports,
product reviews, a broad range of languages and environments, the latest
in shortcuts and insider secrets, advertisements specifically for
Macintosh techies, and full source code listings available on the World
Wide Web, floppy disk, and CD-ROM.

About MACWORLD Expo

MACWORLD Expo produced by IDG Expo Management Company, is the world’s
most comprehensive Macintosh event. MACWORLD Expo is the showcase for
products and services geared to professionals and consumers involved in
media and creative content development for corporate and home
applications. MACWORLD Expo leverages the loyal base of Mac OS audiences
in creative services, education, application development, entertainment,
small office/home office and Internet-based environments. MACWORLD Expo
offers professionals and consumers alike the opportunity to discover the
latest developments and hottest products these markets offer. MACWORLD
Expo is sponsored by Mac Publishing, LLC, a joint venture between
International Data Group and Ziff Davis, and publishers of Macworld
Magazine, eMediaweekly and MacWEEK.com. For more information on MACWORLD
Expo call 800-645-EXPO or visit the Web site at
http://www.macworldexpo.com

About IDG Expo Management Company

Headquartered in Norwood, Massachusetts, IDG Expo Management Company is a
premium producer and manager of exposition and conference events that
shape the IT marketplace. IDG Expo Management Company is an affiliate of
the International Data Group (IDG) family of companies.
IDG Expo-produced events include the MACWORLD Expos in Boston and San
Francisco; ComNet in Washington, D.C. and San Francisco and E3 Expo -the
Electronic Entertainment Expo produced for the Interactive Digital
Software Association (IDSA). IDG Expo Management Company was founded in
1979 as Mitch Hall Associates. For more information, please call
781-551-9800
or visit the company’s Web site at http://www.idgexpos.com.

About International Data Group (IDG)

Headquartered in Boston, International Data Group (IDG) informs more
people worldwide about information technology than any other company in
the world. With annual revenues of $2.05 billion, IDG is the leading
global provider of IT media, research, conferences and expositions. IDG
publishes more than 290 computer newspapers and magazines and 700 book
titles in 75 countries, led by the Computerworld/InfoWorld, Macworld,
Network World, PC World, Channel World, and …For Dummies global product
lines. Company information is available at http://www.idg.com.

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Apple, the Apple logo, Mac OS, Developer Central and Macintosh are
registered trademarks and iMac is a trademark of Apple Computer, Inc.
MacTech and DevDepot are registered trademarks, and
NetProfessional and the Depot are trademarks of Xplain Corporation.
Additional company and product names may be trademarks or registered
trademarks of the individual companies and are respectfully acknowledged.
Not responsible for typographical or other errors.