Unlike some years back when sites were almost exclusively static, the standard currently is to have a feature-rich, dynamic Internet site. Not many people can build this type of website completely from scratch though, hence the most convenient solution to have a dynamic website is to use a script app. Lots of website hosting companies offer script installers you can use to add this kind of an application for each of your domain or subdomains, so you'll not have to install anything manually. The key advantage of using an installer tool would be that the scripts are ready to use in a few minutes and the copy which will be installed is already with the settings necessary for it to run correctly on the particular hosting web server, so you'll not have to change any script or account settings. In this way you can quickly build one with simply a couple of mouse clicks even when you have never had an Internet site before.