>Rather than "64 bit environment" I think you meant "ipv6 environment". The "::1" value you're getting back is the local loopback address, the ipv6 equivalent of the ipv4 127.0.0.1.
>
>This link should help:
http://stackoverflow.com/questions/151231/how-do-i-get-the-local-network-ip-address-of-a-computer-programmatically-cIf you are refering to the last part of the page, there is some code which includes "NetworkInformation". From my understanding, if this is the code that can be used as an example to extract the IP address, this seems to be only supported from .NET Framework 4.5. Is this your understanding as well and the code you were refering to? When I tried it in my environment, I cannot get NetworkInformation to be available under the System.Net namespace.