Code:
http://technet.microsoft.com/en-us/library/cc778084.aspx
or more specifically,
Code:
http://technet.microsoft.com/en-us/library/cc756118.aspx
EDIT: or even better (perhaps),
http://ss64.com/nt/index.html
On Windows 7, and in an Explorer (
the file manager) window, if you hold SHIFT while right-clicking a directory, the context-menu will offer you the additional item "Open command-prompt here".