I am trying to install the GDAL extension.I need to use ecw files in GeoServer.I want to see more rasters formats display.I was trying to follow this guide http://docs.geoserver.org/latest/en/user/data/raster/gdal.html, but it's not really clear for me..... I have completed this steps
1)Download the GDAL extension for this version and extracted to C:\Program Files (x86)\GeoServer 2.12.1\webapps\geoserver\WEB-INF\lib
2)Download the GDAL 'CRS definitions' for your imageio-ext version create 'GDAL_DATA' as environment variable and populate it C:\Program Files (x86)\GeoServer 2.12.1\GDAL_DATA
3) Download the native libraries for windows populate it C:\Program Files (x86)\GeoServer 2.12.1\gdal-1.9.2-MSVC2010-x64
After that i am confuse how i will do?