Stanley,
That is very depending how the IP address is used (given).
You can have a static IP addresses belonging to the world domain
You can have a static IP addresses inside your domain
You can have a leased IP addresses inside your domain
You can have a leased IP address given by your Interenet Provider
You can use an official range inside the private area (starting with 168, 10
or 150)
You can have made a wall between your IntraNet and InterNet and use all kind
of IP addresses.
Probably there is even more.
If the IP address starts with 10 than you are almost sure that it is an
intern IP address.
Another fact is that you can have more IP addresses on one computer. One of
those is used than mixed or special to reach an other domain. However you
never know how inteligent the administrator has created with the router a
way for routing IP addresses.
If you want to know the domain of a computer, than you can of course use the
environment class for that.
http://msdn.microsoft.com/library/d...systemenvironmentclassuserdomainnametopic.asp
I hope that this gives an idea
Cor
