Use Explorer and examine all .exe, .msc and .vbs in C:\WINNT\System32
This might be easier in a CMD session (Start, Run, CMD) and use the xxxxxx.msc /? syntax to get a listing of the default switches and purpose of the file.
Two other thoughts:
. Create a desktop shortcut with the shortcut Wizard to: %Windir%\Help\ntcmds.chm
Read and expand all listings.
. If you intend to take a cerification exam, and you get used to the Start, Run shortcuts, this will hurt you. There will not be an answer choice: Start, Run, eventvwr.msc for a question as to how to access the Event Viewer. When I went for MCSE testing I was so used to the Start, Run, shortname that I really sweated trying to remember how under Start, (other choices) one accessed these utilities.