The Drive field contains a drop-down list of the logical drives. This field cannot be edited by the user.

The Drive field displays the value passed in the papszIDriveList field of the FILEDLG data structure. If the application does not specify a drive list, all drives currently available on the system are displayed. When the drop-down list is displayed, the current drive is highlighted. When the user selects a drive, the display is refreshed. When either the user-specified drive or the default drive has a volume label, the volume label is displayed also.

Users can access networked files by associating logical disks with remote servers, or they can enter the name and ID of the server in the File Name field. When the server name entered is not found in the Drive drop-down list, it is added to the list and displayed in the Drive field.