WMI is a really cool service that gives access to just about anything that you might want to know about a machine.  Being a bit of a scripter (I'm lazy - or efficient, however you want to say it), I think this is a tool worth learning.  Want to see the running processes?  Run tlist, qprocess, or just use wmic - it can do that, and more.

Lists the current processes:
wmic process list brief

Lists the current processor(s):
wmic cpu list brief

Lists the bootable OS(s):
wmic os list brief

Lists the volumes:
wmic volume list brief

Lists the event log information
wmic nteventlog list brief

Don't have netdom.exe handy?  You can use wmic to join a domain/workgroup from the command-line.
wmic computersystem CALL joindomainorworkgroup name='NewNameOfWorkgroup' ...

You can type wmic /? to see what else is available