common places in windows - command line

add / remove users ,  for username and password
lusrmgr.msc
control userpasswords


auto logon ,
netplwiz
control userpasswords2
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon   (old)
REG_SZ::DefaultUserName
REG_SZ::DefaultPassword
REG_SZ::AutoAdminLogon

folder options ,
control folders
RunDll32.exe shell32.dll,Options_RunDLL (old)

windows update ,
control update

control panel,
control panel

gpedit.msc
secpol.msc
services.msc
servermanager.msc
tsconfig.msc
remoteprograms.msc

intl.cpl
sysdm.cpl [rundll32.exe shell32.dll,Control_RunDLL sysdm.cpl,,1]   1 is the tab number , 1 - 5 etc , the same as all cpl launch by rundll32.exe
powercfg.cpl

useraccountcontrolsettings.exe

http://www.windowsnetworking.com/kbase/WindowsTips/Windows2003/AdminTips/Admin/LaunchingControlPanelAppsfromtheCommandLine.html
http://www.vista123.net/content/list-rundll32-shortcut-commands-windows-vista
http://support.microsoft.com/kb/315231
http://techsupt.winbatch.com/ts/T000001043001F3.html