I found this while stumbling the web with the great Stumble Upon browser add on. Ninite is a web application installer that lets you choose from a assortment of programs in many categories like: Web Browsers, Messaging Programs, Media Tools, Anti-Virus and File sharing too name a few.

It is very easy to use, you just check a box next to the application you want to install and then download the custom installer to your computer for the applications you selected. From the website:

Ninite works in the background 100% hands-free.

We install apps with default settings and
say “no” to browser toolbars and other junk.

All we do is install the apps you choose.
Not even Ninite is installed.

It seems to be very user friendly and a fast way to install multiple applications with just one custom installer. Visit the Ninite website to begin selecting the applications you want and your own your way to installing many application with just one installer! I recommend it. Also if they do not have a application abvailiable you can request that they add it to their website.