FOR IMMEDIATE RELEASE

MangoSoft Corporation Awarded Fourth U.S. Patent

Company Recognized For Web Caching Expertise And Internet Innovations

Westborough, MA - March 27, 2000: MangoSoft Corporation (MGOF NASDAQ BB), a leader in the development of easy-to-use software that uses PC desktop systems to dramatically improve Internet access time without requiring additional hardware, today announced that the U.S. Patent and Trademark Office has issued the company patent number 6,026,474 for Shared Client-Side Web Caching Using Globally Addressable Memory.

The patent acknowledges MangoSoft's unique distributed caching technology, which produces unprecedented improvements in Internet performance. With this patent, MangoSoft -- which previously received three patents for its distributed file system technology -- further extends its ability to deliver scalable Internet solutions to small and large businesses.

"This patent is further evidence of MangoSoft's innovative approach and unique expertise in distributed systems technology," said Scott Davis, co-inventor of the technology and vice president and chief technology officer of MangoSoft, Inc. "With CacheLink's advanced and cost-effective approach to Web caching, MangoSoft is well positioned as an emerging leader in delivering technology that leverages ordinary PCs to improve the way companies use the Internet."

The newly awarded MangoSoft patent is the first that covers pooled Web caching, which is the foundation of the company's CacheLink product. CacheLink, MangoSoft's software-based Web cache product, dramatically improves Internet and intranet performance by transparently linking the browser caches of computers on a company's local network into a single large cache pool. The result is significantly decreased Internet access time and increased available bandwidth. CacheLink achieves this without requiring additional hardware or complicated system administration. CacheLink not only speeds up access to the Internet, but effectively reduces the costs associated with Internet access.

Recognizing CacheLink as the preferred caching solution, Ramp Networks has recently announced that it is bundling the program on its WebRamp 350E shared Internet access devices.

The rights of the patent are effective as of the patent award date, February 15, 2000.

About Mangosoft, Inc.

Mangosoft, Inc. (OTC: BB: MGOF) creates software and services that make the Internet a better place for business. Through its Mangomind® Internet File Server for Business, Mangosoft allows its customers to connect easily and securely with remote colleagues, clients, and partners around the world, enabling them to make smarter and faster business decisions. Encryption technology is provided by RSA Security (NASDAQ: RSAS). FileTRUST^SM, acquired from FleetFinancial, provides secure, online file storage services. Mangosoft's Cachelink® Web caching software maximizes a company's existing resources, making the Internet work faster and more efficiently. Mangosoft sells its products directly to customers as well as through a network of value-added resellers and systems integrators. The Mangosoft Web site is http://www.mangosoft.com.

The matters discussed in this news release include forward-looking statements that may involve a number of risks and uncertainties. Actual results may vary significantly based on a number of factors, including, but not limited to, risks in product and technology development, market acceptance of new products, product demand, the impact of competitive products and pricing, changing economic conditions and other risk factors detailed in Mangosoft's most recent annual report and other filings with the Securities and Exchange Commission. Prices for Mangosoft products and services are subject to change - check the pricing page on Mangosoft's web site for current pricing.

fileTRUST and The Business Internet File Service are servicemarks, Mangomind and Cachelink are registered trademarks, and Mangosoft is a trademark of Mangosoft, Inc.