Hi Friends, Help needed from you guys. We have an application which Auto-detects the network. It was working fine with all windows os. But when we tested on Windows server 2003 Enterprise edition we are unable to detect the child nodes. We are using Multicast socket. It is based on the multicasting principle where the child nodes send Identity packets to a common multicast subnet and the Server(Parent) also listen at the common multicast Subnet i.e 126.96.36.199 Is there any compatibility problem windows server 2003 enterprise edition. Thanks in Advance.