http://blogs.technet.com/jhoward/archive/2005/05/03/scsi-shunt-driver.aspxIt's rare you see something in a beta release which makes such a dramatic difference to performance. This is one such instance. If you want to save yourself over 5 hours when installing a Virtual Machine under Virtual Server 2005, read on.... Last weeken-GBCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.technet.com/jhoward/archive/2005/05/03/scsi-shunt-driver.aspx#418021Wed, 25 Jan 2006 01:29:52 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:418021Mi9An unattended installation of Windows Server 2003 Standard Edition using Microsoft ADS and the SCSI Shuntdrivers takes about 35 minutes.