ALADDIN SYSTEMS SHIPS NEW VERSION OF STUFFIT ENGINE SOFTWARE DEVELOPERS KIT
-MAKING DATA COMPRESSION AVAILABLE TO MAC OS X DEVELOPERS

Software Developers Can Include The Latest Mac OS X- Compatible StuffIt
Compression And Decompression Technology In Their Software To Create Faster
Downloads, Use Less Space, And Access A Variety Of Internet Formats

Watsonville, CA - April 23, 2001 - Aladdin Systems, Inc., a wholly-owned
subsidiary of Aladdin Systems Holdings, Inc. (OTC BB: ALHI) and publisher
of the worldwide Internet compression standard, StuffIt(tm), today
announced it is now shipping the StuffIt Engine(tm) Software Developer Kit
(SDK), version 6.0.1 for Macintosh. The StuffIt Engine allows third-party
software developers to put the power of StuffIt technology in their own
applications.

"Whether it is accessing existing files and archives, creating them, or
simply reducing the size of the documents an application creates, the
StuffIt Engine SDK is the solution for third-party developers wishing to
include award winning StuffIt technology in their OS X or Classic
application," said David Polzine, StuffIt Engine SDK product manager.

StuffIt Engine Features and Enhancements:
* Carbonized and Compatibile with Mac OS X
* Supports compression and encoding in AppleSingle, BtoA, Gzip, Lha,
Tar, and Unix Compress
* Supports expansion and decoding of AppleSingle, BtoA, Gzip and Rar
* Also, includes all previous formats and capabilities

One Application Programming Interface (API)
Designed to be easy to integrate into a developer's application, the
StuffIt Engine has one API to handle all the popular compression and
encoding formats. By incorporating the StuffIt Engine libraries in any
software application, developers can create or access StuffIt or Zip
archives, add or remove encoding, or make self-extracting archives for Mac
or Windows desktop users. The StuffIt Engine SDK for Macintosh can be used
to create the following file and archive types:

StuffIt (including encrypted and/or segmented), Zip, Self-Extracting
Archive for Macintosh, Self-Extracting Archive for Windows, Apple Single,
Binhex, BtoA, Bzip, Gzip, Lha, MacBinary, Tar, UU

The SDK can be used to expand or decode all of the above plus:

Arc, CompactPro, MIME, PrivateFile, RAR, and to mount ShrinkWrap disk image
files.

Other Key Features and benefits of the StuffIt Engine:
* Multiple Platforms: The StuffIt Engine SDK creates and accesses the
most common compression and encoding formats found on Windows, Linux,
Unix, and Macintosh.
* Multiple File Formats: The SDK supports the most popular
compression and encoding formats found on the Internet, examples
include StuffIt, Zip, Tar and more. For more examples go to:
http://www.aladdinsys.com/sdk/
* Saves and restores item comments: the SDK retains "Get Info"
comments on Mac files and folders.
* MacBinary III compliant: Supports the latest MacBinary standard
* HFS+ support: saves and restores all new HFS+ file info, including
long file names.

StuffIt Compression Advantages:
* Lossless compression,
* Variable compression ratios for Fast and Maximum compression and speed,
* Better compression,
* Unicode and two-byte compliance for international support,
* Free expansion across multiple platforms unlike its shareware competitors,
* self extracting archives on Mac or Windows platforms,
* and more... (http://www.aladdinsys.com/sdk/),

StuffIt Engine SDK Availability
The Aladdin StuffIt Engine SDK is available for download from Aladdin's web
site at: (http://www.aladdinsys.com/sdk/) and is licensed directly from
Aladdin. License fees vary by the type and scope of the project. To apply
for a license, please visit
(http://www.aladdinsys.com/sdk/licenseform.html) or contact Aladdin's
Developer Sales group at: sdk.sales@aladdinsys.com or (831)761-6200.
Currently licensee's automatically receive a free upgrade to the new
version.

Requirements:
The minimum operating system requirement for the StuffIt Engine SDK is
System 7.5.3. The minimum hardware requirement is a PowerPC processor, 8MB
of installed RAM.

Aladdin Systems, Inc: Helping Transmit, Access and Organize Information(tm)
Aladdin Systems, Inc., a wholly-owned subsidiary of Aladdin Systems
Holdings, Inc., (OTC: ALHI) was founded in 1988. Aladdin is a developer and
publisher of Windows and Macintosh software products that are designed to
assist users with the Transmission, Access and Organization (TAO) of
information. Aladdin's software offers a range of solutions to increase
user efficiency in the areas of information access, removal, recovery,
security and Internet distribution. For more information on Aladdin's
products, visit: (http://www.aladdinsys.com).

Aladdin is located at 245 Westridge Drive, Watsonville, CA 95076, USA;
telephone: (831) 761-6200; URL: (http://www.aladdinsys.com); e-mail:
info@aladdinsys.com.