If a device is assigned explicitly, this status is not changed when /ATTACH-DEVICE or /DETACH-DEVICE is used.
A device that is assigned implicitly can subsequently be assigned explicitly by means of /ADD-VM-DEVICES. If the device is subsequently detached by means of /DETACH-DEVICE in the guest system, this status does not change.
Implicitly assigned devices can also be removed explicitly from the VM by the VM2000 or VM administrator by means of /REMOVE-VM-DEVICES or /SWITCH-VM-DEVICES (see "Explicit device assignment and removal"). After /SWITCH-VM-DEVICES the device is assigned explicitly to the new VM.
Explicit assignment of an attached device (attached in the guest system) can be converted to implicit assignment for guest system by means of /REMOVE-VM-DEVICES ..., FORCE=*NO(WAIT-FOR-UNASSIGN=*YES). Subsequent detachment by means of /DETACH-DEVICE in the guest system releases the device.