[DesignII] WinSim Inc. Enjoys Record Sales in First Half of 2003

[Lynn McGuire]

Sugar Land, Texas - July 23, 2003 - WinSim Inc., developer of DESIGN II for Windows, announced today that it is experiencing
unprecedented growth as sales for the first half of 2003 came in 27% ahead of the same period in 2002. The company just set a record
for sales in the first half of 2003. The company reported strong business from renewed software contracts as well as new business.
WinSim is anticipating record sales in 2003.

WinSim expects continued increases in market share as ever more simulation users are impressed by the value of DESIGN II and
WinSim's market awareness increases. WinSim offers the best combination of powerful simulation and outstanding support at a
reasonable price.

About WinSim Inc.

WinSim has developed and marketed DESIGN II for Windows, a steady-state process simulator, since 1995 when the company purchased the
rights to the program from ChemShare Inc. WinSim has over 1,000 active users of DESIGN II throughout the world. The company is based
in Sugar Land, Texas.

Online Press Release:

http://www.winsim.com/press/firsthalf2003.html

Contacts:

Michael Lynn McGuire
President
WinSim Inc.
281-565-6700 x102
winsim at winsim.com
www.winsim.com

Sterling Allen
Manager, Business Development
WinSim Inc.
281-565-6700 x104
sba at winsim.com
www.winsim.com


WinSim Inc.
P. O. Box 1885
Houston, Texas 77251
13333 Southwest Freeway, Suite 130
Sugar Land, Texas 77478
281-565-6700 Phone
281-565-7593 Fax
www.winsim.com
sales at winsim.com
support at winsim.com