http://msmvps.com/blogs/clustering/archive/2006/09/24/Shrink-your-VMWare_2C00_-Virtual-Server-or-Virtual-PC-Virtual-Machines-_2800_VMs_2900_-images.aspxOnce in awhile I use a product and like it enough to tell the world. http://www.invirtus.com/ has created one - Invirtus VM Optimizer 2.5. This product is simply amazing. I bring a Virtual Server 2005 R2 Virtual Machine Domain Controller to my ClusterHelpenCommunityServer 2008.5 SP2 (Build: 40407.4157)