Version 4 Download

This download is provided for the convenience of customers of the last major version of Breeders Assistant prior to the release of the v5 series.

Before downloading, please note:

  • Breeders Assistant v4 was discontinued several years ago, we do not support it any more, and it is not fully compatible with Windows 10. We do not recommend its use. For continued access to support and updates you must upgrade to the current release instead.
  • You will need your existing download password, serial number and installation key. The serial number string must start with the letter T, and it must have been issued between July 2005 and March 2014.
  • You can find this information on the letter you received if you purchased the CD version of Breeders Assistant, or in the email that you received with the installation codes.
  • Failing that, if you still have access to the software you can find it as follows:
    1. Open Breeders Assistant.
    2. Select About Breeders Assistant from the Help menu.
    3. Check the program version, which is in the top line of the 'About' Window. It will say something like this: Breeders Assistant, v4.65a, Built on .... The version number must start with v4.
    4. Next, check the serial number. You will find this in the middle of the window. It must start with the letter T.
  • If your serial number begins with the letter S or you have an older version (2 or 3) then you will need to purchase a support/updates extension in order to get an installation code for the current release. Very old releases can be downloaded by registered customers but they are unsupported.


Breeders Assistant for Rabbits
Full Product Version 4.65a
American English Download

Breeders Assistant for Rabbits
Full Product Version 4.65a
British English Download

Please select between the British English and American English versions. The only difference is the spelling of terms such as 'color' and 'colour'.

How To Install - when you click the download link your browser will download an 'installer' program to your computer. Once this has finished - usually just a few seconds - you will need to open the downloaded file in order to install the software. Some browsers show recent downloads at the bottom of the web page. If you are updating an existing version of Breeders Assistant we recommend that you make a backup copy of your Breeders Assistant data file(s) first, just in case you need to revert to the previous version for any reason. Good luck!

The current release is v5.24, May 2018.


Downloading Problem? If downloading fails, perhaps due to a firewall, please try these alternative download links for the American English version and the British English version.

Breeders Assistant® is a product of Tenset Technologies Ltd, All Rights Reserved. Breeders Assistant is a registered trademark of Tenset Technologies Ltd in the United Kingdom. v5.24
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