I have crystal report 2010 installed with VS 2010.i have created a crystal report which is works fine in the localhost but the issue is once i publish my website to IIS the
i know this is a bit little old post but i think the novis like me can get help from this. add this code to your web.config file and copy "crystalreportviewers13" folder from "c:\inetpub\wwwroot\aspnet_client" to your root directory