SCCM 2012 and Server 2003x64\XPx64

Just in case you run into it...

Client install fails on Server 2003 x64 or XP x64 with the following logged in ccmsetup.log:

This operating system does not contain the latest version of BITS  2.5 or later is required for ccmsetup
CCmSetup failed with error code 0x80004005

Before rolling out the CM12 client, install the latest Bits 2.5