Web Map Server


The OpenGIS Web Map Server (WMS) protocol defines a simple interface for web based mapping applications. The WMS protocol is based on a simple query syntax for posting a request for the desired layers and zoom window to the server, which returns a map as a standard picture (GIF, PNG or other format)

As part of our online documentation, a quick introduction to how the WMS protocol works is provided to get you started.

For a comprehensive technical background and official specifications for the WMS protocol, we strongly recommend you to begin by reviewing the WMS specification document provided by the Open Geospatial Consortium.


Some unique features that distinguish the Demis WMS server from competitive products are:

  • Optimized for performance, outruns most competitive products
  • Support for vector based GIS layers, imported from common GIS formats
  • Support for grid based GIS layers, including interpolation, contouring, relief shading
  • Support for image based GIS layers, including ECW and MrSID format images
  • Support for tiling, allowing huge data sets to be rendered efficiently
  • Plug-in interface, allows the programming of custom graphics on top of any map
  • Variety of output formats, GIF, PNG, BMP, JPEG, SWF
  • Specific support for developing clients using Macromedia Flash
  • Comes bundled with a huge 1:1,000,000 scale world map data set compiled from various sources



System requirements

Purchase license

What's new in 4.0


Demis BV
Certified OGC Compliant Logo
Certification Valid: 2015-08-25

Demis WMS 4.5


For a more practical introduction, you can try out our WMS implementation using a simple Flash based client right here:

System requirements

The Demis Web Map Server runs on Microsoft Windows NT/2000/2003/2008 server editions with IIS web server.

The Demis WMS service components are COM based, WMS connector scripts are provided for integration with ASP 2.0 or ASP.NET web programming environments.

Purchasing a license

You can evaluate the Web Map Server software using a free trial version available from our Support site.

For orders please contact us at sales@demis.nl for advice, payment by bank transfer is recommended.

Due to the new VAT regulations, for orders placed within the EU, we will need to request your VAT number to avoid additional tax charges. For orders placed from within the Netherlands, tax law requires that we bill you for additional VAT (BTW) so please contact us at sales@demis.nl for advice, payment by bank transfer is recommended in this case.


Work on the documentation is always in progress, if you are looking for information you cannot find, please contact us at support@demis.nl or join our user support forum and post your questions there.


For more information about Demis send an e-mail to : contact@demis.nl