ArcGIS-based information system for river basin management and tasks deriving from the EU Water Framework Directive
(Please note the requirements)
| Version | Date of Release | Size | Operating system | Requirements | Changes | Download |
| WISYS 3.6 | March 2012 | 40 MB | Windows | ArcGIS 10, SP1 or 2, min. 1 GB RAM | Online-Help (DE) | Download |
| WISYS 3.5.0.6 | Feb. 2010 | 48MB | Windows | ArcGIS 9.3 SP1, ArcGIS 9.3.1 or ArcGIS 9.2 SP6 DotNET 2.0 Minimum 1GB Memory recommended | Changes | Download |
For licensing WISYS with a local dongle you need to install the DHI-WASY license manager NetLM (NetLM software and patches).