Zie:
http://support.microsoft.com/default.aspx?scid=kb;EN-US;q135893
[Windows Explorer Switches]
Windows Explorer switches are useful in creating rooted folders:
Explorer [/e][,/root,<object>][[,/select],<sub object>]
/e
Use Explorer view (scope and results pane view). The default is
Open view (results in pane view only).
/root<object>
Specify the object in the "normal" name space that is
used as the root (top level) of this Explorer/Folder (i.e., local
path or UNC name). The default is the Desktop).
/Select
The parent folder opens and the specified object is selected.
<sub object> Specify the folder unless /select is used. The
default is the root.
Examples:Explorer /e, /root, \\Reports
opens an Explorer window at \\Reports.
Explorer /select, C:\Windows\Calc.exe
opens a folder at C:\Windows (or activates one that is
currently open) and selects Calc.exe.
Explorer/e,/root,\\Source\Internal\Design\Users\David\Archive
opens a folder to the Archive folder above. This is a good
way to create a dedicated, remote, documents archive
folder. A link to this folder (\\Source\Internal\Design\
Users\David\Archive) can then be placed in the SendTo folder
for quick routing of documents.