Aladdin HASP Adds Support for Leading-Edge Windows XP Professional x64 Edition

CHICAGO, May 4, 2005 - Aladdin Knowledge Systems Ltd. (NASDAQ: ALDN), today announced that the HASP® HL software protection and licensing solution now offers full support for Microsoft's Windows XP Professional x64 Edition and Windows Server 2003 x64 Edition, leading platforms for next-generation applications.

The Aladdin HASP family of products is used by software publishers to protect, license and distribute their products. HASP software DRM products offer both software and hardware based protection solutions for securing applications and data.

"The faster, more-secure and more-powerful 64-bit versions of Windows XP Professional and Windows Server 2003 create unlimited opportunities for our customers," said Brian Marr, senior product manager of Windows at Microsoft Corp. "Microsoft is pleased that the new HASP 64-bit driver ensures smooth migration from 32-bit platforms for all HASP-protected applications."

"64-bit versions of Windows XP and Windows Server 2003 are significant milestones and steps forward for the industry," said Avi Barir, vice president of Software DRM for Aladdin Knowledge Systems. "As software users move to the next generation of computing, we're pleased to provide them with a smooth transition, while software vendors continue to enjoy the strong, time-tested licensing and security expertise of HASP HL. Aladdin's HASP family continues to support the latest technology while maintaining its market-leading capability to prevent unauthorized use of software".

A new HASP 64-bit driver ensures that all HASP-protected applications can smoothly migrate from windows 32-bit platforms to 64-bit platforms without any inconvenience to software vendors or their customers.

In addition to preventing unauthorized use of software, Aladdin's HASP products allow support for multiple licensing models designed to give publishers the flexibility to sell their products in a multitude of ways, without compromising security. This helps software publishers bring their applications to market faster with the world's leading software protection authentication solution.

For more information on Aladdin HASP, visit http://www.Aladdin.com/HASP.

The HASP Family of Products

• HASP HL - the industry's top hardware-based licensing and software protection system
• HASP HL Net - a hardware-based solution for protecting and licensing software used by multiple users in network environments and in the enterprise
• HASP SL - a software-based licensing, protection and distribution system
• HASP TT - Solution to secure and control trialware
• HASP DocSeal - Advanced hardware-based system for intellectual property protection

About Aladdin Knowledge Systems

Aladdin Knowledge Systems Ltd. is a global provider of security solutions that reduce software theft, authenticate network users and protect against unwanted Internet and e-mail content, including spam and viruses. Its security products are organized into two segments: Software Digital Rights Management (DRM) and Enterprise Security. Aladdin's Software DRM products allow software publishers to limit revenue loss from software theft and piracy. Its Enterprise Security solutions enable organizations to secure their information technology assets by controlling who has access to their networks (authentication) and what content their users can utilize (content security). Visit the Aladdin Web site at http://www.Aladdin.com.

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