Wireless Zero Configuration (WZC) is a Windows XP service that you can use to manage wireless network connections. It's pretty easy to use, but a lot of laptop PCs and OEM wireless network adapters still come with other software provided by their manufacturers. So which should you use?
Well, prior to Windows XP there was no choice and you HAD to use the card manufacturer's software. Now you can often find yourself using "WZC" with XP automatically, whereas sometimes an XP laptop with builtin wireless may be set up to use wireless configuration software from Broadcom, Atheros or Intel (whoever manufactured the wireless chip), a lot of Dell laptops come set up to use Dell's own Wireless LAN card Utility, and Lenovo or IBM ThinkPads may use IBM Access Connections, arguably the Roll-Royce of connection solutions for the professional road warrior. After market, if you install an add-on wireless network adapter from Belkin, Netgear, Linksys, or SMC you will usually end up with the card manufacturer's software installed by default. In every case, the software does a similar job, but the details differ.
There is always a means provided to scan for a list of available wireless networks and to specify connection parameters. Usually all need to know is your network name and your WPA passphrase or your WEP key. Third party wireless configuration software often includes additional controls to turn builtin wireless on or off, perhaps to select or deselect WZC, screens for creating, editing, and saving connection profiles (something WZC does automatically), and even a screens to manage different sets of networking and security profiles for use in various locations such as home, office, school, and so on.
Which software you should use for Windows XP wireless configuration is almost a religious issue for some technical support folks, and this can be very confusing for typical users who sometimes may be caught in the middle. Some techies will always tell you to use WZC because it's easy for them to have everyone use the same solution. This approach is great for both of you if it works, but often it does not and that depends on your equipment. One problem you can run into is that the tech support agent gets you connected one time using WZC, but after a reboot the connection doesn't work anymore. Profiles have to be saved and changes have to stay in place which ever approach you use. Other tech support folks can take a more conservative approach and they may recommend that you use whatever software came with your wireless equipment and not change it. You are stuck in the middle. What should you do?
Well, for a start don't let some pimply-faced kid from your ISP's support department tell you how to configure your expensive computer over the phone. After five minutes he will be gone, leaving you with the results of your decision. How much did you spend on your wireless computer anyway, and how badly do you want it to work for you? The best thing you can do for yourself is spend a few minutes learning how your own particular computer is set up and how to use the wireless connection software provided by the manufacturer. If possible you should get the sales agent to show you this in the store, and make him spend time with you to answer any questions you may have. How do you turn the wireless on? How do you make a connection? You should make a decision not to change the way your computer is set up and to be prepared to stick with it. The worst thing that can happen is that your ISP technical support folks ask you to call your computer manufacturer for support.
It helps a great deal to read about wireless networking on the World Wide Web. Do not expect that your wireless connection is always going to work flawlessly. Do expect that it will stop working for you at an inconvenient time. Be prepared to connect through a wire if your wireless connection stops working for whatever reason. Buy an Ethernet patch cord and carry it with your laptop computer at all times. Get one at least twelve feet long for use in most situations. Do not rely on your ISP's technical support folks to keep your computer running for you. Do read as much as you can of the support information your computer manufacturer has made available with your computer and also at their web site.
As for other operating systems, remember that Windows XP came out in 2001. All of the above is really yesterday's news. With both Windows Vista and Mac OSX you have no choice but to use the wireless configuration tools provided by the computer manufacturer. Does this sound familiar? The different flavours of Linux still have some catching up to do, which is another reason to use the software provided by the computer manufacturer, whether it be OLPC, Dell, HP, or whoever.
May all your connections be secure, and your signal strength excellent!