FOR IMMEDIATE RELEASE

Mangosoft Launches Expanded Mangomind Product Line

Unique file sharing and online storage services to accommodate growing storage and collaboration needs of business users

Westborough, MA - May 21, 2001: Mangosoft Inc. (Nasdaq: BB: MGOF), a leading provider of Internet-enabling business software and services, announced today the launch of an expanded Mangomind product line that will provide businesses of all sizes with superior Internet file sharing and online storage.

Mangosoft's new products, Mangomind Drive and Mangomind Enterprise, are designed for companies that require remote access for teleworkers and mobile employees, and that regularly collaborate with colleagues, partners and others outside of a corporate firewall. Unlike a number of similar products on the market that were created for consumers and modified for corporate use, Mangomind was specifically created with the special needs of business users in mind. It is more secure, reliable, easy to use, and cost-effective than any other solution available today and is the only service with full multi-user capabilities.

"This is a very exciting time for us. There are so many online file sharing and storage companies right now that are changing their products and marketing them for businesses, but none have the range of capabilities that Mangomind has always had. No one can compete with what we have to offer in terms of functionality and price," said Dale Vincent, CEO of Mangosoft. "This expanded product line will enable us to better serve all of our clients, as well as support a new range of business users, from remote workers to traveling executives to project managers responsible for the coordination of multi-location projects."

Mangomind clients include companies of all sizes across vertical markets, from healthcare and real estate to consulting and publishing. Mangomind enables these businesses to connect remote workers, collaborate on and manage projects worldwide, and share classified documents in ways not possible with other solutions and e-mail.

"As a chief financial officer, I was looking for a secure, reliable solution to share confidential documents among colleagues who are in two different offices," said Andy Gould, Vice President and Chief Financial Officer of Chromaplex, a manufacturer of data networking products. "I evaluated some of the online consumer storage products, like Xdrive, but they didn't offer the security, the workgroup file sharing capabilities, or the seamless integration into the Windows interface that I needed. Most of all, they didn't seem to have the kind of rock-solid reliability that we need for storage of important documents. I chose Mangomind because after testing it seems to have all those characteristics."

Security for Mangomind products is provided by RSA Security (NasdaqNM: RSAS) and includes business level 128-bit encryption of transferred and stored files. Mangomind products also include Tier 1 enterprise hosting with automatic backup and restore functions as well as full-time customer support and service. Furthermore, the Mangomind line is easy to install and does not require extensive training. The products are designed with the end-user in mind, looking and acting like a familiar Windows drive.

"When we first developed Mangomind, we couldn't have begun to conceive of all of the different applications our customers would find for the product," said Doug Edwards, Vice President of Sales and Marketing of Mangosoft. "Mangomind Drive and Mangomind Enterprise are our way of responding to clients in all industries who are looking for a wider range of options in their file sharing and online storage, but who can't compromise on having fully-functional, enterprise-level service."

Mangomind Drive: is a secure, multi-user Internet file sharing and online storage service consisting of 5-user drive with 50 megabytes of storage. The cost of the service is $14.95 per month.

Special introductory offer (extended): purchase before September 1, 2001 and get the first 3 months for just $7.95 per month.

Mangomind Enterprise: is a secure, multi-user Internet file sharing and online storage service that provides expanded storage and internal drive administration capabilities, and an unlimited number of seats. Mangomind Enterprise costs $14.95 per user per month and includes 10 megabytes of storage for each user with the option of purchasing additional storage.

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.