NetSetMan
I'm changing locations often enough I finally decided it was easier to get a BroadbandConnect card than deal with the hassles of various networks failing in the middle of something important. If a dedicated fast connection isn't in your budget, but you still want the convenience of quick configuration, NetSetMan may be the tool you were looking for. Instead of editing network settings at home, at work, and elsewhere, NetSetMan helps you perform on the fly network configuration, saving time in setting up your network connection as you move from place to place. Two awesome features are storage of settings for default printer and configuration of network drives, so you never end up printing to nowhere or slowing down your Windows Explorer as you wait for non-existent resources to timeout. Store up to 6 different locations, including IP address, DNS, subnet mask and default gateway. If you need a corporate solution or more than 6 location settings, there's also a pro version of NetSetMan with additional volume licensing options. [Windows 2k/XP/Vista $0.00]