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#dpmi

2 posts

FreeDOSDeep Dive August 9, 2026 4 min read

DPMI on FreeDOS: How Protected-Mode Programs Coexist with Real-Mode DOS

How DPMI hosts give DOS applications selectors, linear memory, real-mode callbacks, interrupts, exceptions, and virtual memory without replacing DOS.

#freedos#dpmi#protected-mode

FreeDOSFix August 9, 2026 3 min read

Fixing DPMI and Protected-Mode Memory Errors on FreeDOS

A diagnostic path for missing DPMI hosts, linear-memory exhaustion, page faults, invalid selectors, swap files, extenders, TSR conflicts, and bad RAM.

#freedos#dpmi#troubleshooting