How to Enable DNS Address Resolution in XenApp 6
This article describes how to enable XML DNS Address Resolution in XenApp 6.
Enabling DNS Address Resolution is allows the XenApp 6 server to return the Fully Qualified Domain Name (FQDN) of the XenApp server to the ICA client using the XML Service. This also means that workstations must be able to resolve the FQDN of the XenApp 6 servers with this policy enabled.
Read the full procedure ( How to Enable DNS Address Resolution in XenApp6