Question: What about authentication issues. When the user jumps from our application to the reporting server application does he have to be re-authenticated or is there a way out where the credentials can be picked up form the environment. We are using Windows NT based security where the user is verified against his domain information account on our LAN.
Answer: Reporting service supports Role Based Security. This role based security allow your administrator to create roles within the Reporting Services mangement tool. This allows for using NT Groups to determin access to reports. If an application need further credentials, The application will prompt for further information, but another technique is the pass additional parameters in the URL string to handle this information.
For More Information: http://msdn.microsoft.com/library/en-us/rswork/htm/rms_security_v1_6ol5.asp?frame=true