After you customize and restart the guest network, the virtual machine might need additional customization steps, depending on the applications that run in the guest operatin system. For example, you might need to generate new encryption keys for an instant clone, or signal an application to close and re-open network sockets when you have configured new network IP addresses.
To do additional customization steps in the guest, use the GuestFileManager and the GuestProcessManager interfaces in the GuestOperationsManager managed object.
