Cold Fusion is a type of common gateway interface (CGI). It basically allows pages to become more dynamic. Cold Fusion allows for your webpages to be built and controlled on the fly via one cold fusion page. In order to use Cold Fusion, you first need to either have paid hosting which allows Cold Fusion or your own server with Cold Fusion installed. Cold Fusion now comes in both UNIX and NT formats. You also need a DB program. For NT, you should use Access 2000 or SQL Server. For UNIX, you should use mySQL.