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I'm having trouble grasping this idea. Is expanded memory part of upper memory?
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Reaching way back in my "own memory" here....
This is how I remember it: If someone finds this flawed a little I'm not surprised.
On those old 8088 type machines you had to use a tool (QEMM comes to mind) that would allow you to configure blocks of upper memory or expanded memory addresses above the "real memory" 64KB line contiguously. This was a limitation of the old DOS versions.
By setting your upper memory blocks this way programs like Framework, DBase and Lotus 1-2-3 could run spreadsheets and perform database operations by accessing upper memory and avoided running out of memory as fast.
The problem back then was the software resource demand on the PC was always way ahead of the hardware technology for running business applications we take for granted now such as Word or Excel.
That's a bottom line explanation and as Budfred said, it's just not something you have to deal with anymore.