I have a vhd file from Virtual Server containing Windows 2003 Server SP2 that runs correctly (it is a domain controller). However, Parallels Transporter does not recognise that there is an OS installed and attempts to migrate it as a data volume. What is it looking for? Parallels Transporter version shows as "3.0 Build 1456". The vhd file is currently running under Virtual Server 2005 R2.