FOR IMMEDIATE RELEASE

Mangosoft Announces Availability of Cachelink Pro

New Software for Small-to-Mid-Size Businesses Speeds Internet Access up to 160X Faster with a 56K Modem and up to 40X Faster with a T1 Connection

Westborough, MA - September 11, 2000: Mangosoft Inc. (NASDAQ BB: MGOF), developers of innovative software that leverages PC desktop systems to speed up Internet access, today announced the availability of Cachelink Pro, the scalable computer desktop Web caching software that increases Web access up to 40 times faster with a T1 line, up to 60 times faster with DSL and up to 160 times faster with a 56k modem. Cachelink Pro is specifically designed for businesses with Local Area Networks(LAN's).

Cachelink Pro works by allowing all users on the network to share Web content stored in each local PC's browser cache (the memory computers use to store Web content). Users can then download previously viewed Web pages or files from the cache on the local network, which is much faster than going out to the Internet to download the same Web page. Users of Cachelink no longer have to wait for a site to download; it's available instantly and therefore allows them to work instead of wait.

"One of the technology-related challenges facing many businesses today is leveraging the power of the Internet in a way that efficiently and cost effectively provides high speed access for multiple employees at any given time," said Jim Yearick, Cachelink Product Manager. "From a productivity standpoint, Cachelink Pro is unique to the market. The product is the only scalable software solution on the market today that can provide faster than T1 Internet access."

"The major challenge I was experiencing in my classroom was slow Internet download time, because I have many students accessing the same Web sites," said Russell Ewick, technology specialist and Webmaster for Stroud Elementary in Modesto, CA. "Since installing the Cachelink software, the delivery speed of Internet content has significantly increased and my students are now working more effectively and efficiently on their computers. Cachelink is fast, inexpensive and easy to install."

"Many Web users in a business or organization access the same or similar Web sites, having to do with a particular subject area or vertical market," said Michael Hoch, research analyst, the Aberdeen Group. "Why should employees sit idle and consume bandwidth as they wait for Web pages to download, when a copy exists in their co-workers' Internet temp folders? Cachelink is the first product I've seen that lets users securely share PC temp caches across a LAN, therefore decreasing both wasted 'Internet wait' time and bandwidth-related expenses."

Increased Internet Access Speed-Cachelink Pro accesses previously viewed Web pages up to 40 times faster with a T1 line, up to 60 times faster with DSL and up to 160 times faster than a 56k modem, thus eliminating the numerous bottlenecks when accessing Web pages and downloadable files.

Increases Network Bandwidth-By redirecting requests for Web content from the Internet to the LAN cache, Internet connectivity congestion is reduced and more bandwidth is available for downloading new Web pages or running other network applications.

Accelerate Networks of any Size-Each time a new user installs Cachelink Pro on a PC within a network, they add a computing power and local storage space to draw upon. Cachelink Pro provides high performance Internet access for networks with as few as two computers or as many as hundreds.

Cachelink Pro Activity Meter-Computers with Cachelink Pro installed capture the speed and efficiency of the product in real-time by monitoring the most recent hits on the cache and the time with which it would take to download that same page from the Internet. A graphical display shows the time saved by accessing Web pages in the cache.

Cachelink Connector-With at least one Windows-based computer connection to the Internet, the Cachelink Connector gives non Windows-based PC's a connection into the Web cache. This dramatically increases the number of users on the LAN, which in turn maximizes office productivity.

Pricing, Platform Support and Availability-Cachelink can be purchased directly from Mangosoft or through its national reseller organization. Cachelink Pro works with new or existing networks of Windows 95, Windows 98, Windows NT and Windows 2000. Pricing for a full installation of Cachelink Pro for 10 users is $50.00 per PC. Volume pricing is also available.

What is a Web Cache?-A Web cache is a place where Web pages that you have visited are stored so that they can be displayed quickly when you visit them again. Rather than waiting to download the same page over and over, a Web cache returns loaded pages quickly without having to go out to the Internet. Pages you have visited can be displayed more quickly when you visit them again and new pages can load faster because your Internet connection is not bogged-down reloading the same content.

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.