Hi Mark's UUID library is a good reference.. http://www.futility.co.uk/futsoft/revolutionstuff.html regards alex Sivakatirswami wrote: > > One thing I need to emulate is their GUID (Global Unique ID) generator > which outputs unique len(36) random strings like > > 557B4610-65DC-4FEA-B6DC-32C3FA4B374D >