Syntax
Explorer.exe options
Options
/n Open a new single-pane window for the default selection. This is usually the root
of the drive Windows is installed on. If the window is already open, a duplicate opens.
/e Open Windows Explorer in its default view. This is usually the users home drive.
(,)/root,object Open the specified object in a window view.
/select,object Open a window view with the specified folder, file or application selected.
/separate Launch the explorer instance as a separate process.
(This is an undocumented feature)