Blocking interfaces

The configuration of the two interfaces COM and LPT is limited to blocking or allowing for some or all users. Instead of being controlled like other devices or interfaces, these are treated like removable media.

The following options are available:

• Allow: Any authenticated user can use this interface

• Deny (lock) for all users: Access to this interface is locked for all users.

• Deny (lock), but allow access for defined users and groups: Interface is locked, but access is possible for the specified user(s) or group(s).

  To include another group or user in the list, click Add. Click Remove to delete the previously selected entry.

PalmOS devices or Windows CE devices, which are connected to the computer via the serial interface, can only be locked via the option "Serial interfaces (COM)". It is not possible to control these devices via the device classes "Windows CE Handhelds and Smartphones" or "Palm OS Handhelds and Smartphones", because Windows does not allow hardware detection at the serial ports (COM).