How do you go to a tab in control panel directly from command prompt?
Under the system32 directory, you will find a few *.cpl files. Running these files will take you directly to the control panel tab corresponding to them. For e.g. appwiz.cpl will take you to "Add/Remove Programs" tab in control panel.
You can get a complete list of these files from this Microsoft Knowledge Base article.
It saves a lot of time especially when you are running in a lesser privileged account and want to switch to admin account to install/uninstall programs.