The 7.7.1 version of Relex is provided as a free download on our website. This download was checked by our built-in antivirus and was rated as virus free. This program was originally created by Relex Software Corporation. The program is included in Education Tools.
From the developer:
Relex was founded on the principle that reliability engineering software tools should be easy-to-use, well-designed, robust, feature-packed, and accurate. While engineering applications often are cumbersome and difficult to use, Relex tools have always been designed with our customers in mind. They provide you with the power to perform all of your reliability activities in one seamlessly integrated product
You may want to check out more software, such as MathMatic, MemBrain or roboBASIC, which might be related to Relex.