FOR IMMEDIATE RELEASE

Mango Introduces a New Way to Network

Mango's Medley Enters Beta Testing for August Release

New York, NY - June 17, 1997: Today at PC Expo, MangoSoft Corporation (Mango) announced an entirely new way to network computers using its revolutionary CacheLink Networking technology. This breakthrough software solution, created with original Mango technology, delivers a totally adaptive, fault-tolerant and completely transparent network. The new CacheLink Networking architecture dramatically exceeds the functionality, flexibility and performance of existing client/server and peer-to-peer networking solutions.

Utilizing three of today's most pervasive industry standards, Microsoft Windows, TCP/IP and Ethernet, CacheLink Networking has the unique ability to seamlessly tap the storage and memory resources of all the PCs on the network. The CacheLink architecture sets a new standard in networking where all the attached PCs work as both a client and a server. By harnessing these idle PC resources, Mango's networking solution creates a cooperative, optimum performance environment.

Mango's First CacheLink Network Solution: Medley

Mango's debut product utilizing CacheLink Networking technology is Medley - a networking solution for the more than 150 million small business PCs that are not currently networked. The initial version of Medley, which will be available in August 1997, is designed for companies who want to network up to 25 PCs operating with Windows 95 and/or Windows NT.

When configuring a Medley network, every PC contributes a portion of its hard drive to help create a Medley drive. For example, if ten users contribute 250 megabytes, then the Medley volume will be 2.5 gigabytes in size. Each machine will see the Medley drive as a local hard drive listed with all the other drives under "My Computer," which means that users do not need to learn networking and already know how to use Medley. Because all of the machines in the network can access the Medley drive like a traditional server, it is well suited for application and file storage.

Medley delivers significant benefits to users, including:

* Easy to Set Up: You do not need to know anything about networking to set up or use a Medley network. The entire network configuration - including IP addressing, driver and network stack installation, and more - is completely automatic.

* Cost Effective: Medley allows PCs to share resources - both storage and memory - so when a new computer is added to the network, everyone benefits. . . all without the need of a network administrator.

* Efficient: Medley provides the power of a traditional network without the complexity, so users are able to easily exploit the benefits of sharing information. And because idle storage resources are being utilized, users also benefit from peak network performance.

* Fault-Tolerant and Self-Healing: Every file on the Medley drive is transparently stored in at least two places to ensure availability in the event of any machine failure. Thus, making all the networked data accessible by the machines remaining in the network during such a failure. Following a machine outage, all data from the down machine regenerates across the network - restoring the network to a fault-tolerant state within minutes.

* Adaptive: Medley automatically stores files on the PCs where they are used to increase performance and reduce network traffic. As usage patterns and available resources change, the Medley network automatically adjusts to meet end user needs.

"Medley is the first network that all WinTel users already know how to use," said Steve Frank, president and CEO of Mango. "It's a simple and affordable network solution that delivers power beyond networks available at any price - Medley is a revolutionary new way to network."

Medley Offers Dramatic Savings Over Traditional Solutions

Compared with traditional server-based solutions, the savings on Mango's Medley are dramatic. A traditional 10-seat client/server network can be almost four times more costly than a 10-seat Medley network - not including the considerable expense of a network administrator.

Distribution

Mango will initially introduce Medley in August of 1997 through a wide range of Value Added Resellers (VARs) and Original Equipment Manufacturers (OEMs) in North America. A retail roll-out is slated for later in 1997, followed by the delivery of Asian and European versions in the fourth quarter.

"Because the network buying habits of a small business differ vastly from those of a larger company, we needed a unique way to reach this market - thus we developed a circular channel strategy," explains Rick Onyon, vice president of Sales and Marketing. "In this strategy VARs, OEMs and retail outlets work together harmoniously, with each channel feeding sales into the next."

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.