FLOPLOCK.EXE - Utility to put DACLs on floppy drives

    A DACL is a Discretionary Access Control List.  Putting a DACL
      on a floppy drive controls access to it, so that one could
      say the floppy drive is locked

    When FLOPLOCK.EXE has the floppy drives on a machine locked,
      members of the Administrators group have full access, and
      all others have no access

Summary:  There is no way to put a DACL on the floppy drives or on
  the COM ports with REGEDT32, or using the Control Panel or other
  part of the user interface.  And there is no way to use the
  Win32 api to put a DACL on the floppy drives that survives
  reboots

Floplock.exe, however, does put DACLs on the floppy drives, and
  these DACLs survive logoff/logon, that is, these DACLs are on
  the floppy drives until the next reboot or until you unlock them

To use Floplock.exe, you must first install Floplock.exe as a
  service on every machine whose floppies you want locked.  Then
  you must use the Control Panel on each machine to configure this
  service to start automatically (that is, start before someone
  logs on)

To install Floplock.exe as a service, run the Instsrv.exe utility
  Type "Instsrv" to get the help text:

  In the case of this service:
         instsrv FloppyLocker c:\service\floplock.exe
             (note fully-qualified path name to .exe)
         instsrv FloppyLocker remove

Then go to the Control Panel, use the Services applet to configure
  the FloppyLocker service.  Pick the account it should Startup
  under (Administrator would be one good choice), and provide the
  correct password for that account

Then reboot the machine, log on as Guest and try to access the
  floppy drives as a test

You need not name the service FloppyLocker, that is, you may pick
  any name you like

To unlock the floppy drives on the machine, you may use the server
  manager to remotely stop/start the FloppyLocker service.  Note
  that you can only do this while logged on as an Administrator.
  Stopping the FloppyLocker service will unlock the floppies,
  restarting it will re-lock them

If you would prefer that Floplock.exe have some other user
  interface, full source code is available on the Win32 SDK CD, in
  the \q_a\sd_flppy directory