Some Googling found http://support.microsoft.com/default...;en-us;q220791 - so do you have Office 2000 installed?
You would run such commands from the Command Prompt (Start>All Programs>
Accessories) but the switch /? following a command is always just informative about how to use the preceding command; it just gives one a list showing how to use the command and what options are available, so I don't see how this would help your problem.
Possibly this is due to having upgraded rather than clean-installed. If running Office you could perhaps try uninstalling and then reinstalling FROM THE CD.
BTW, what do you have inside your Start>All Programs>StartUp Folder?