Poser Pro is compiled as a 32-bit application. Firefly-64-bit is compiled as a 64-bit application. If one has a 64-bit OS, and runs Poser Pro without sellecting render in a seperate process, Firefly will run as part of the 32-bit Process of Poser Pro. This will mean that it can address about 2gigs of memory. In a seperate process, Firefly 64-bit can access more memory (which is the advantage of being a 64-bit application). Even with a 32-bit machine, rendering in a seperate process allows Firefly to access more memory than if it is run as part of Poser (as the Poser process has its own ovehead). I fail to see any advantage in not using a seperate process.

LMK

Probably edited for spelling, grammer, punctuation, or typos.