For anyone interested (a few people have asked), we just completed the Windows Vista logo certification requirements. No major changes to the product except that you'll find, in builds 11.0.707 and higher, a couple of Diskeeper files that used to be placed in the systemroot folder moved to the standard Diskeeper folder in Program Files. To accomodate this new path, the Diskeeper installation creates a new entry in the Environmental Variables so the sytem can properly find these files.