Hi
I am using Windows XP PRO SP3. I want to manage INTERNET bandwidth between my Applications. Sometimes many apps requiring to be connected to Internet are running at same time such as Internet browsers, download manager (IDM &bittorrent) , anti viruses , online games , ETC. when some applications are running they get most speed of internet and browsers hardly open web pages and or anti viruses get updates slowly, etc. ,
how i can manage internet bandwidth between apps.when antiviruses are downloading updates how they can get most speed of internet  for it.
these specific app that i told are just EXAMPLES. i want to KNOW how to manage speed of internet between apps in GENERAL.
That is often done automatically. A few programs have built-in management. If you are doing P2P in the background, that application should have a throttle.

Example: Vuze ( http://vuse.com )  is a torrent app with bandwidth management.

Otherwise, you buy a specific router that can do that and/or  buy the third party software that does it. Look  at Crisco systems.
http://tools.cisco.comTry this--> http://seriousbit.com/netbalancer/
You could also go by a higher internet bandwith if you are having trouble keeping up with all the activities...