Access to a user folder in Windows file explorer

I need a simple API or Ocx that can disable the access to all Folders or drives of the hard disk with the Windows file explorer aplication or with the windows Common dialog. The aplicacion will be as a service in the system and the user could only view his user folder and the files of this folder, but will have disable the access to other folders or files. The same when the user will save a office document and open the common dialog window, could show only the user folder, not all drives and not other folders, to avoid save files or open files in other folders. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform WIndows 95, 98, Me, 2000, NT, XP, 2003