My computer internet has been acting strangely lately and I'm trying to determine if I have
a trojan or whatnot.

I have Norton, but am unsure if it would stop things like trojans.

Anyway, is there a list of processes that one can reasonably expect to be running on a Win200 box?

I know this would be highly variable, but I don't have much software on my machine
that should be activated on startup, but I find that I have a screen-and-a-half of processes running on startup.

Is this the right forum? Can someone point me in the right direction?