For playing AH you'd need access to the Internet and a running Windows. Read the
BV Win7 configuration page thoroughly. There you'll find a list of all Windows 7 services for all versions, their default values and the modifications for "safe", "tweaked" and "bare-bones". Since you won't read the beginning of the page, even the "safe" option works for only 95% of computer users, the rest much less. Read everything related at least from his site to understand what you're doing and why, and how can you roll back if things don't go your way. I repeat: Read.
For services that aren't listed, use Google to find out what they are. Many third party programs have a service running, too. Some are necessary, some aren't. There's no two similar setups, so you're the only one to help yourself concerning your rig.
You don't have to stop services the way BlackViper does, you can use FSautostart to shut down the services BV suggests. Besides, FSautostart is a bit aged, AlacrityPC is the new version of it and might -just might- work better with Win7. I really don't know, maybe they both work equally well for temporarily shutting down services.