Choose your current connection type - It's not actually necessary to know your connection type - the CNET servers will download a 50k image to figure it out - but if you know already, entering it here will increase the accuracy of the test.
Usually this would be a server installed with Microsoft's Internet Information Services (IIS), although Sun has a product called Chili!Soft ASP which enables ASP to run on other non-Microsoft servers such as Apache, Red Hat, and others.
While there isn't really much a service provider can do to stop the mechanism of a CGI proxy (webmasters also use PHP to create proxy websites), they can block traffic to the proxy servers themselves whenever they are discovered.
Making sure that your server is configured in a way that lets you use ASP is usually as easy as asking the web host; most servers come equipped with either shopping cart software built in or the ability to set it up in a few clicks.
Many businesses set up proxy servers to block certain websites that are considered unsafe for a work environment, and others will even use these servers to monitor what the employees are doing during the day.