SMP Internet Gateway for Win Server 2012 R2

I have the current hotfix updates for the Symantec/Altiris 7.5 SMP platform.  I'm working on migrating our SMP Internet Gateway for the cloud management to a Windows Server 2012 R2 server, but the installer from the NSCap directory does not work.  The error is that the OS must be Server 2008 R2 SP1.  Is there a newer version of SMP Internet Gateway I can use or does anyone know a MSI installer command property I can use to bypass the OS check?