Insights of the 3GB story...

/3GB and /USERVA=

/3GB will give user processes access to 3GB of address space instead of just 2GB, leaving only 1 GB for the system. If the system needs more than 1GB, use the

/USERVA=n

where n is a number from 2048 to 3072, to fine tune size of the address space to suit the need of your installation.


nismit

For a 32bit program to use the /3GB switch the program itself must have the ability to use the extra space which is set in the program's executable file header. The following link is for FSX and explains the pros and cons of this and has a link to the avsim forum on how to make the changes.


http://blogs.msdn.com/ptaylor/archive/2007/06/15/fsx-and-win32-process-address-space.aspx

John
 
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