My understanding is that each 32 bit app gets it's own separate space, and for practical purposes, it is 2GB of space. If necessary a 32 bit app can get more than that, using some tricks. Band-in-a-Box currently doesn't come close to needing the 2GB.

It is discussed further here...

http://www.brianmadden.com/blogs/brianmadden/archive/2004/02/19/the-4gb-windows-memory-limit-what-does-it-really-mean.aspx
"In the 32-bit Windows world, each application has its own “virtual” 4GB memory space. (This means that each application functions as if it has a flat 4GB of memory, and the system's memory manager keeps track of memory mapping, which applications are using which memory, page file management, and so on.)

This 4GB space is evenly divided into two parts, with 2GB dedicated for kernel usage, and 2GB left for application usage. Each application gets its own 2GB, but all applications have to share the same 2GB kernel space."

Have Fun!
Peter Gannon
PG Music Inc.