Windows Vista What Programs Are On Startup?

Hi Everyone, I am trying to help a friend out who has windows vista on their computer. They had put a few new programs on the computer, but had set them up to be running in the background on startup.

Could someone give me step by step instructions to find what programs are starting on startup and how to switch them to only startup when called upon?

A few years back I was able to figgure this out on my own computer but I have XP pro and if I mess up my own machine that is one thing... but I do not know Vista and want to make sure that I can access and change the programs (such as itunes) that are constantly running on my friends comp. These programs are causing his computer to run way beyond his available RAM and use upwards of 60-70% of his CPU. This is a new computer (purchased last weekend) and did not have these problems before the additional programs were installed. It is a mid range HP ($1000) and should run fine once these programs are re-set.

Any assistance is greatly apprecated. Also, if you do have a web-site that is pretty reliable in trouble shooting these issues I would also appreciate it so that I do not have to bother the YA community with these simple questions.

Thanks again in Advance

-P-