1. A computer program product comprising a computer useable medium having a computer readable program stored on a tangible storage device, wherein the computer readable program when executed on a computer causes the computer to: establish an administrative machine name for a virtual machine; associate at least one administrative name space with the administrative machine name; back up files belonging to the virtual machine using a backup proxy, wherein the files are segregated under the administrative machine name and are accessible using only a secure key belonging to the virtual machine and without using a backup proxy secure key; and mask out pathname components for each backup file pathname so that the backup file pathname is equivalent to a virtual machine file pathname.