Established in 1984 Mistral is proud to be widely considered the 'generic' software system provider for the refrigeration & air conditioning industry. In its domestic market, Mistral software is used by more than 85% of refrigeration & air conditioning contracting firms and programs have been distributed to over 17,000 users in over 100 countries around the world.


Bugs happen. And one just did!

No matter skilled and vigilant computer programmers are it is a fact that they are frequently dealing with literally thousands of procedures in extremely complex, interactive situations. Occasionally, very occasionally a coding mistake goes unnoticed and only reveals itself weeks or sometimes even months later. Particularly when the error is minor and also in a rarely entered program procedure.

Naturally Mistral, as a long established and world class leading software developer, has rigorous procedures in place for dealing with such 'bugs' if and when they occur. For simplicity and clarity these are categorised and you may click here to see details.

A Category 3 level coding error resulted in one of Mistral's 100 program launcher forms having a 'Blind Link'. Meaning that when triggered the launch program would stall. This was reported at 17:00 hrs CEST on Sunday 4 June 2017. The single byte coding error was identified, corrected and the offending program recompiled and uploaded to Mistral's server by 23:30 hrs CEST Sunday 4 June. Licensees wishing to upgrade their installations are invited to click here to download the self extracting exe file for installation.

For users of version 5.0c (build number 739) and above it will not be necessary to re-enter your currently valid Access Registration Code.

Users of versions 5.0b (build number 738) and below will automatically receive new Access Registration Codes to complete their installation upgrade. Naturally without charge. However, please be patient waiting for this to arrive as the process may take up to 24 hours to complete. Depending upon staff work load, international email routing issues over which we have no control, and requests received outside of normal office working hours (CET/CEST).


Mistral's commitment:

"Bringing the benefits of computerisation to our industry - without the historically associated problems."