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For questions relating to the use and development of hardware drivers for a computer operating system.

60 votes
Accepted

Why HIMEM was implemented as a DOS driver and not a TSR

HIMEM has to load very early for it to be most useful. The DOS loader processes config.sys (loading drivers), then loads command.com, which then processes autoexec.bat (loading TSRs). Had HIMEM been a …
Euro Micelli's user avatar
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