I finally find the solution! The problem was related to the IIS and proxy.cgi that I needed in my WebApp directory.
I followed the zhuhua zha's solution at the post: http://osgeo-org.1803224.n2.nabble.com/Solution-to-proxy-for-WFS-request-on-IIS-td1830924.html -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/WMS-getFeatureInfo-Popup-tp5355333p5482587.html Sent from the OpenLayers Users mailing list archive at Nabble.com. _______________________________________________ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users