Hi All,At one of our customer site, we are not able to upload pdf files to one of their website through Proxy Server, but by bypassing Proxy Server we are able to upload. Here is how we are uploading the file...We Open the Webiste, Login in to it, there is a option to upload (Only PDF Files), We click on it, After clicking the Button, Java is enabledon the client Taskbar and JAVA Applet start loading in the Website Window, Once applet is loaded, it gives Option to Select and upload the file, We select the file, and click Upload. Within 7-10 sec, it generates message Upload Failed : java.net.unknownhostexception:www.websitename.comThis issue only come when we use JAVA Version 6.0, but it works fine with JAVA 4.0. If we bypass proxy, files get uploaded even with JAVA 6.0.Looking forward for a solution Thanks Ranjit Singh

WebProxy clients does not supports FTP uploadshttp://technet.microsoft.com/en-us/library/cc750609.aspxhttp://technetfaqs.wordpress.com

Hi, After installing ISA Client, issue has been resolved. Thanks