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How to Open a Rooted View of a Junction Point Through the Registry

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You can use the registry to specify that browsing into a junction point will open a rooted view rather than the default view of the contents of the associated extension.

Instructions

To specify that browsing into a junction point should open a rooted view, add Open\Command and Explore\Command subkeys to your extension's CLSID subkey, with their default values assigned to the command lines shown here:

HKEY_CLASSES_ROOT
   CLSID
      {Extension CLSID}
         Shell
            Open
               Command
                  (Default) = %SYSTEMROOT%\explorer.exe/e,/root,"%1"
            Explore
               Command
                  (Default) = %SYSTEMROOT%\explorer.exe/e,/root,"%1"

Once you've added those values, an instance of Explorer.exe is launched to display the contents of the extension as a rooted view when the user selects the junction point.

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