Some of them are standard programs (extras) that come bundled with many OS's. You can however copy/paste the program name in the search engine, and I'm sure you'll come up with many results to help you decide what you want to do with the program. You can then decide if you want them to load or not during boot up. You can also choose to uninstall them. The choice will be yours. But, from what I saw, they were bundled with your computer OS.
As far as the RealPlayer and such, although I do recommend to not use them (privacy reasons)
.. having them installed won't bother anything. The one reason I found that you may want to consider leaving it on your computer, is that when you visit some web sites, they may only have that file in a specific format, and at the same time, not allowing you to download it to view offline. In cases like that, there's not much you can do about it. But if you never plan to use the program(s)...... simply don't use it. You don't have to uninstall it, and it won't hurt your computer at all. And if you're worried about it "phoning home
", you can block the program from transmitting from your computer back to the Internet.
Edited by Walkman, 10 November 2006 - 03:34 PM.