October 11, 2004 (Arlington, VA) – Group Logic, developer of best-selling network workflow software products, announced today version 4.0 of its ExtremeZ-IP File Server software product. Available to customers later this year, this major upgrade introduces a new product architecture as well as significant improvements in the product's scalability, performance and compatibility with Mac OS X. ExtremeZ-IP, a robust file server software, is the only AppleShare file server on the market that fully integrates both Mac OS X and Mac OS 9 with Windows 2003/2000 Server versions as well as Windows 2003 Storage Server and Windows XP Professional. With over 30 new features, version 4.0 marks a significant milestone for the ExtremeZ-IP product line. Through a re-architected internal structure and advanced caching strategy, 4.0 gives customers immediate startup, higher availability and radically reduced memory usage, as well as superior performance under load. New active-active clustering capabilities allow customers to distribute multiple virtual Mac file servers across multiple nodes, with immediate failover.  This translates into improved uptime, and flexibility in failover options and functionality.   Bundled into the 4.0 upgrade is the product's support of Kerberos – the network authentication protocol adopted as a standard part of Windows 2000/2003 and Active Directory and adopted by Apple in Mac OS X.  Incorporating this protocol in ExtremeZ-IP protects user names and passwords on the network without requiring multiple user logins. For IT administrators, it streamlines the process of managing user accounts by administering both Mac and Active Directory accounts concurrently and with the same high level of security while maintaining the ease of use for clients and end users. Group Logic's ExtremeZ-IP product is the only AppleShare (AFP) server for Windows on the market that supports Kerberos.  The 4.0 upgrade is aligned to support Mac OS 10.3 Panther and will be updated to be fully compatible with Mac OS 10.4 Tiger when it ships next year.