and the way you tell is it's in the wrong place.
go to that microsoft link.
read it. if you only have ONE of those processes.. you are ok.
but if there's TWO of em.. one's an imposter..
there's always a way to tell. file size is what i usually go by.
and so does the OS you use, and how you've tweaked it..
if you're on XP, and havn't tweaked it, you're getting about 1/2 the performance you paid for.
XP does a ton of optional stuff by default that slows performance.
it's like running a car with every electrical accessory wide open.
after a while, you notice.
i recommend XenTweak (and you'll LOVE the result if you'll have a rabid geek walk you through the process, don't experiment, cause i don't want to be yelled at)
it's here: http://www.x9k.net/
and it's free.
don't mix and match techs. what works for one, may not work with a few tiny differences. stick to one tech you trust.