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ILWIS 3.3

ILWIS 3.3 Download page

ILWIS 3.31 Update

ILWIS 3.31 is a service pack on ILWIS 3.3. Some new functionality has been added to the Hydrologic Flow Operations and the Spatial Multiple Criteria Evaluation (SMCE); some bugs were fixed.

ILWIS 3.3 Installation

Single file download and installation

Download the ILWIS 3.3 self-extracting executable ILWIS3.3Academic.exe listed below. When the file has been downloaded, start the executable by double-clicking it. The installation files will be unpacked, then the ILWIS 3.3 installation is automatically started. To install under Windows NT/2000/XP, administrator rights are required.

ILWIS3.3Academic.exe (19.3 MB)

Multiple part download and installation

In case you have an unstable internet connection, download the fifteen (15) files listed below into one folder. When all files have been downloaded, start the executable by double-clicking it. The installation files will be unpacked, then the ILWIS 3.3 installation is automatically started. To install under Windows NT/2000/XP, administrator rights are required.

Announcement: ILWIS open source and free of charge per 1st of July 2007

ILWIS software will be made freely available ('as-is' and free of charge) as open source software (binaries and source code) under the 52°North initiative (GPL license) as per July 1st, 2007. Go to 52North.

Installation instructions

  1. Download and install ILWIS 3.3, see above.
  2. Subsequently, download and install ILWIS 3.31 update (the patch).

ILWIS documentation and data

  • To download text and data of the ILWIS User's Guide, see ILWIS 3.0 User's Guide.
  • To download text and data of the ILWIS Applications Guide, see ILWIS 2.1 Applications Guide.