Setting up a global proxy setting in Windows Vista can be a bit tricky, but it's definitely possible. In order to do this, you'll need to have administrative rights on the computer you're trying to configure.
The first step is to open up the Control Panel, which can be done by going to Start > Control Panel. Then, once you're in the Control Panel, you'll want to go to the Network and Internet section, and then click on Internet Options. This will bring up the Internet Properties window.
Once you're in the Internet Properties window, you'll want to go to the Connections tab. On the Connections tab, you'll want to click on the LAN settings button. This will open up the Local Area Network (LAN) Settings window.
In the LAN Settings window, you'll want to check the box next to \Use a proxy server for your LAN\. Once you've checked that box, you'll need to enter the address of the proxy server you'd like to use. Most companies will have their own proxy server, so you'll need to get the address from them.
Once you've entered the proxy server address, you'll need to enter the port number. This can also be obtained from the company you're using the proxy server from. Once you've done that, you'll want to click on the Advanced button.
In the Advanced window, you'll want to check the boxes next to \Use the same proxy server for all protocols\ and \Bypass proxy server for local addresses\. This will make sure that the proxy settings are applied to all Windows applications. Once you've done that, you'll want to click on OK.
At this point, you should be all set. You should now have a global proxy setting that will be applied to all Windows applications. However, it's important to note that some applications may not work with the proxy setting, so you may want to test them before relying on them.
In conclusion, setting up a global proxy setting in Windows Vista is possible, but it can be a bit tricky. You'll need to have administrative rights on the computer you're trying to configure, and you'll need to get the proxy server address and port number from the company you're using the proxy server from. Once you have that information, you'll need to enter it into the Local Area Network (LAN) Settings window, and then check the boxes next to \Use the same proxy server for all protocols\ and \Bypass proxy server for local addresses\ in the Advanced window. Once you've done that, you should have a global proxy setting that will be applied to all Windows applications.
