EwE version 6.6.16889.1 requires .NET framework 4.5 and relies on 64-bit Office drivers. This version is tested with Windows 7 and newer. It may run on Windows Vista but we cannot guarantee that. EwE is unfortunately no longer compatible with Windows XP.

Version 6.6.1 fixes a number of serious errors in release 6.6:

• Ecospace scenarios can be created again under all circumstances
• A few drawing errors were fixed such as in the Mixed Trophic Impacts graph
• Ecopath models from Ecosim are now generated from one full year of Ecosim data