Eugene Muzychenko wrote: > Hello Tim, > >> It's still perfectly valid to create "type 1" GUIDs, where you increment >> the top set of digits to get additional GUIDs. The Uuidgen tool will >> give you a base if you say "uuidgen -x". >> > > Using UuidGen -x, you need to make sure it uses a valid, unique MAC > address. If your system have virtual network adapters created by > VMware, VBox etc., UuidCreateSequential may use their MAC addresses > that are not unique. > That's a valid point. On the other hand, the type 1 GUID also includes the current time in 100-nanosecond units, so the odds against producing duplicate GUIDs are still very, very small. -- Tim Roberts, timr@xxxxxxxxx Providenza & Boekelheide, Inc.