On April 8, 2014, Microsoft ended support for Windows XP. For AFGROW Users, this means that version 5.2.1.18 will continue to operate, but we cannot guarantee that future AFGROW releases will work with Windows XP. We will remove Windows XP from our list of compatible operating systems, and future versions of AFGROW may continue to operate under XP. However, we highly recommend that our users consider upgrading to a newer version of Windows as soon as possible to avoid any compatibility issues in the future.