Download PetWin

The link below will provide you with a full PetWin 5.2 installation, including the latest device drivers. Please note that this upgrade will not affect older PetWin versions (PetWin 4.1 and earlier) which are separate applications. This means that users can keep their older copies of PetWin.



  • Annual and Academic License customers can upgrade free of charge at any time via the link below.
  • Perpetual License customers who purchased after April 1, 2016 will be emailed instructions on how to electronically upgrade to PetWin 5.2 free of charge. If you have not received your upgrade email, please contact us. Customers who purchased PetWin prior to April 1, 2016 may order an upgrade here for US$3,300.

PetWin updater will not automatically upgrade PetWin 4.1 to PetWin 5.2. You MUST run the full installation from the link provided. Thereafter the updater will always be checking that your files are up to date.


  1. Click the download button.
  2. Click Save to save the installation file to your computer.
  3. When the download is complete locate the installation file pw52setup.exe and run it.

Do not plug in your SafeNet Key until the installation is complete. PetWin 5.2 requires a License Activation Code – when you first run the program you’ll be prompted to enter the code. For annual license and academic customers, your current activation code should be valid for PetWin 5.2, simply enter and apply this code to activate PetWin 5.2. For purchase customers, you can click here to order the upgrade to 5.2.

New Developments in PetWin 5.2
PetWin 5.2 contains many exciting new updates that build upon the energy and operating cost features first introduced in BioWin 5.0, further expanding its capability as a plant management tool, and for comparing design alternatives. A more comprehensive description of the upgrade may be found in the document What’s New in PetWin 5.2 in PDF format.

Note : Files created in older versions of PetWin can be loaded in PetWin 5.2, but not the reverse. We suggest that old files opened in PetWin 5.2 should be saved in a separate directory from the original files.