Internet PC Networking

There are two modes of operation in Windows 2003 environment. Basically a computer can work as workgroup computer or domain computer. Most home and small business environments will be Workgroup, and most enterprise businesses will run in domain mode.
Basically when you install Windows 2003 server, by default it is a workgroup computer.

Workgroup environment is [...]

Here is a simple howto on adding windows 2003 computer to a Windows Server 2003 domain.

This should be valid for other version of windows client computers too.
Before performing the following steps, make sure that your computer can reach the domain controller through the network. You may use ping to test if your computer can [...]