Ok, time for an opinion:
If there was a poster child for worthless processes that should be the first thing you shut off...its Browser.dll. I'm sure in the Utopian-Society of Microsoft it serves a purpose and since we are all running LAN's in our homes and sharing files, services, and have domain controllers and server client relationships....anyway. Shut it off. One of the other 5 programs that Vista has that does the same thing can do it if you want. Browser.dll likes to fight with you before it starts working (Browser does a service a "Client" shouldn't be doing (but that's another story and peer/border outsource debate). If you have an XP machine on your "state-of-the-art-file-sharing-server-block-network-thingy" be the first to hit delete. Chalk this one up as another XP-Vista inop issue. In any case, if you ignore me, and lots of people do, make sure you set one computer up as "Master Browser" on your network or your PC's will get pissy and argue then go to "war" to become master. I'm not making this up, that's what the program says when it happens! Kind of cool! And if you don't have enough things to go through in your event viewer, this is a good service to install as well. You'll get a nice "fight" and "war" message on ALL computers on the network ever so often. Do the world a favor, shut the damn thing off. You'll save log file room, a little bit of network space, a little bit of hard drive space, and maybe learn a little patience since it might (oops) take .01 seconds longer to open that network link or pretty little network topology display. Food for thought! Peace out for now.