XMAEM.SYS
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XMAEM.SYS is a device which causes extended memory to act like
XMA. This utility is incompatible with Windows 3.1. It is recommended
that you remove all references to it from your CONFIG.SYS and
AUTOEXEC.BAT files before setting up or running Windows 3.1.
XMAEM.SYS is provided with IBM DOS version 4.0.

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