SPEED TESTING TOOL ADDED TO IPNETTUNER

CUMBERLAND, R.I.- Sustainable Softworks has released version 1.5 of
IPNetTuner, its easy-to-use software for Internet connection optimization,
adding a simple testing tool that allows users to measure the improvement
in connection performance.

In addition, the company has included ready-to-use configuration documents
that automatically optimize the performance of various types of Internet
connections.

The new version of IPNetTuner, the software's first update since March
2001, now includes Link Rate test and TCP test tools. Both tools offer
performance graphing, so when a change is made to any Open Transport
setting with IPNetTuner, the results of such changes are immediately
displayed during an ongoing test.

A Link Rate test is a raw packet stream test that tells a user how fast raw
IP packets can be transferred over the connection. Users can now test a
connection's Link Rate to make sure that they are getting the raw bandwidth
promised by their ISP.

A TCP Test is a real-world test of the speed and reliability of a normal
web type Internet connection. The TCP Test in IPNetTuner uses the HTTP
protocol to download a specified web page numerous times to determine the
TCP throughput in bytes/sec. By tweaking various TCP parameters in Open
Transport, a user can markedly improve the performance of their web and FTP
downloads. These improvements are also immediately displayed in the
real-time IPNetTuner TCP test graph."

"Tuning Open Transport to optimize a connection is a complex enterprise
since there are so many variables" said Brad Bennett, developer for
Sustainable Softworks. "With these two tests, users can tweak one or more
variables at a time and then immediately test to see what affect the
tweaking of a particular parameter has on their connection."

The software comes with pre-configured documents that will automatically
tune Open Transport for an analog modem, a cable, DSL or ADSL modem, and a
Sprint broadband wireless connection. A user simply double-clicks on the
appropriate icon to launch IPNetTuner, which will then configure Open
Transport properly.

"With the many choices of types of connections now available to more and
more Internet users, we've had an increasing number of users asking us for
easy ways to optimize their particular type of connection," Bennett said.
"These pre-configured documents are a great way to get to most out of your
connection without having to know what something like
tcp_rexmit_interval_initial means."

IPNetTuner is $25 and can be downloaded at
http://www.sustworks.com/site/downloads.html. The upgrade is free to
registered users.

About Sustainable Softworks:
Sustainable Softworks is a small, growing virtual corporation based in
Cumberland, R.I., with employees in Michigan and suburban Washington, D.C.
The privately owned company is committed to helping individuals and small
organizations address their computing needs in a market dominated by larger
and more sophisticated customers and suppliers. The company focuses on
developing understandable and affordable information systems that fit the
environment. Rapid innovation and falling prices have not only created a
complex myriad of choices, but have also led vendors to focus on
incorporating advanced features for enterprise customers who can afford
them. Vendors want to sell and support the most sophisticated technology,
and the market is easily influenced to follow the leaders. What's lost in
this process is a broad market perspective, and rational evaluation of what
is needed and what it will really cost. Sustainable Softworks offers a
mature, insightful view of information systems with an eye toward pragmatic
solutions for both large and small organizations. The company's website can
be found at www.sustworks.com.