Supervisor support for installations on PCs running a 64-bit Windows operating system is typical, for example Windows Server 2012 or
Windows 7 or 8 Professional 64-bit. The primary application for a 64-bit installation is for a Supervisor station with a large NiagaraNetwork (a job with a large numbers of controllers, each with many proxy points), and thus, a
large station database.
In particular, the 64-bit Java VM (Virtual Machine) does not have a 2GB memory limit, unlike the Java VM on a Win32-based
Supervisor. Typically, any PC with 64-bit Windows also has 4GB or more of RAM installed, and, unlike a 32-bit Windows PC, the 64-bit
OS can effectively utilize all of it. Therefore, a 64-bit Windows host may be the solution for the largest enterprise level
Supervisor.