> Quote - Windows XP has a Memory limit of 2GBs, per application; with Windows counting as an application.* *

*OP is using 64-bit Windows and Poser 7, already stated. 

Processes can claim a full 3gb if compiled with the 3gb switch (and Poser 7 is); Windows native processes run in their own process space.  Additionally, each process can claim up to 3gb of swap file; see Poser doing just this in the task list screenshot I showed above (not this one, a few posts back).

edit: uh, forgot to mention - when poser 7 gets anywhere near 3gb of RAM though, it blows up in my experience.

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