While Big Bang has developed a sound, robust utility designed to simplify deployments and rollouts, there are some things that the UIU is not intended for.  These include:

The UIU is not a cloning or imaging package. 

The UIU is not designed to function with Windows 2000 Server or Windows 2003/2008 Server versions.

The UIU is not designed to function with RAID based systems.

A UIU image created on a fully ACPI compliant system will not be compatible with older, non-ACPI compliant (Standard PC) systems.

Finally, deployment from a SCSI based system to an IDE/ATA/PATA/SATA system may fail. The UIU supports imaging to a non-RAID SCSI system, but not from a SCSI system.