Windows XP : Cleaning up unwanted startup programs
Many freeware and commercial software programs have a habit of setting themselves up to run automatically upon Windows startup. This can contribute to the gradual decline in startup speed that most Windows XP systems (and windows PCs in general) experience. Also, having programs that you only use selectively, or not at all, load automatically is a waste of system resources that could be better used for other things.
To top it off, many internet nasties such as spyware programs, viruses and Trojan horses will install themselves into one of the automatic start locations on your system in order to make sure that they are run on startup. So the point is, take a look at what is currently running every time you load your PC, and disable what you don’t need or can’t identify.