= gdal16-ecw =

 * Plugin for ECW and JPEG2000 Raster Formats for GDAL 1.6
 * Requires gdal16
 * Maintainer is FrankWarmerdam.

== Installing ECW SDK ==

The GDAL ECW Plugin requires the ECW 3.3 Runtime libraries which the end user is required to download and install directly from the ERMapper Web Site directly. 

ERMapper Web Site: http://www.ermapper.com/Downloads.aspx?v=303

After installation, please copy the .dll files in the redistributable\vc71 directory somewhere appropriate, like C:\windows\system32. 
 
eg. 
{{{
copy C:\"Program Files"\"Earth Resource Mapping"\"ECW SDK"\redistributable\vc71\*.dll C:\windows\system32
}}}

Note that downloading and installing these DLLs requires agreeing to a license. Please review the license terms carefully. 

It is imperative that the VC7.1 ECW 3.3 SDK binaries be used.  Any other ECW (NCS*) DLLs are unlikely to work properly.  Failure to install the correct ECW libraries will normally result in a popup message reading "This application has failed to start because NCSEcw.dll was not found." or a console error report like:

{{{
C:\warmerda>gdal16
C:\warmerda>gdalinfo
ERROR 1: Can't load requested DLL: C:\osgeo4w\bin\gdalplugins\gdal_ECW.dll
126: The specified module could not be found.

ERROR 1: Can't load requested DLL: C:\osgeo4w\bin\gdalplugins\gdal_ECW.dll
126: The specified module could not be found.

Usage: gdalinfo [--help-general] [-mm] [-stats] [-nogcp] [-nomd]
                [-noct] [-checksum] [-mdd domain]* datasetname
}}}