FAQ: What is required to serve ECW images in ArcGIS Image Server?
What is required to serve ECW images in ArcGIS Image Server?
Note: The ECW raster format is directly supported in ArcGIS Desktop, but not in ArcGIS Server, ArcIMS, or ArcGIS Image Server (the ArcGIS Server Image Extension). To use ECW in server-based products requires additional licensing permissions from ERDAS, Inc., the inventors of the ECW format.
For versions prior to 10, contact ERDAS to request a license. Once the proper licensing is obtained follow the remaining directions. It is necessary to install several files and run a setup to configure the Service Editor and service providers.
There are three DLLs required for ArcGIS Image Server to use ECW files. These are:
• NCScnet.dll • NCSEcw.dll • NCSUtil.dll
These binaries can be obtained from ERDAS, Inc. (www.erdas.com) after purchasing a license for server-side use of the SDK.
Download and unzip the ECW.zip and run the ECW.msi. This installs the additional required files to support the ECW format in ArcGIS Image Server.
Note: These procedures allow access to ECW files. However, they do not allow data delivery by way of high-speed ECWP streaming imagery protocol.
Note: For more information, or further directions, see the InstallingECWplugin.doc or README.txt documents contained in the ECW.zip.