Download EQS4WIN Lite Version

EQS4WIN Lite is a fully functional version, apart from problem size and input/output restrictions. It contains many example problem files illustrating its use for larger problems.
EQS4WIN runs on WIN NT/ME/98/95/3.1. It does NOT run well on Windows XP

Download EQS4WIN by clicking on the icon below; then run the program SETUPEQS.EXE. It requires about 3M disk space when fully installed.

(1.2M)

Note that the Lite Version includes only Version 1 features. The Standard Version must be purchased to use the expanded JANAF-compatible database available in Version 2, and to enable use of the supplementary TRC-compatible organic species database.

To upgrade the EQS4WIN Help File only, download and execute the file EQSHLP.EXE. (The latest Help File version is 1.1.2, Feb. 6/98. The Help File version number appears at the bottom of the Table of Contents Help Topic, accessed from the Help button on the opening screen of EQS4WIN.) Run EQSHLP.EXE. and install the Help File in the directory that contains EQS4WIN.EXE.

(380K)

You may alternatively download the files via anonymous ftp from our site at ftp.mathtrek.com. We understand that this can be much faster from some locations (e.g. Europe). After you login, go to the directory usr/mathtrek, then get the files. If you prefer to receive a copy by regular mail, please submit a request to sales@mathtrek.com, accompanied by $US10 payment, refundable against the upgrade purchase.

If there are any problems with the downloading or the installation processs, contact Mathtrek Support.