Cite as: Real Problem AI problem “How do I keep a business running on an old DOS or Windows XP machine nobody can replace?”. Opportunity score 7.5 out of 10 (severity 8, AI feasibility 6, market signal 7, competition gap 9). Category Others. Trend Agents. Source signal: Ask HN "Who's still keeping a DOS machine up because the business depends on it?", 25 September 2026, 304 comments.. Canonical URL: https://www.realproblem.ai/idea/how-do-i-keep-a-business-running-on-an-old-dos-or-windows-xp-machine.
How do I keep a business running on an old DOS or Windows XP machine nobody can replace?
Labs, workshops and small firms still depend on DOS and Windows XP PCs that drive ISA cards, CNC machines, instruments or legally required systems, and when the hardware dies there is often no one who knows how to move it.
Who has it: Owners and IT staff at labs, machine shops, testing companies and regulated businesses running decades old software.
- Severity8/10
- Feasible today6/10
- Market signal7/10
- Competition gap9/10
Heard in public
“If it goes down, the company gets fined.”
Quoted word for word from the public post linked below. Nobody submitted it to Real Problem AI.
Ask HN "Who's still keeping a DOS machine up because the business depends on it?", 25 September 2026, 304 comments.What nothing does yet
A legacy system rescue service: image the old machine, move the software into a supported emulator or virtual machine, bridge the hardware cards with modern adapters, and document the setup so the business no longer depends on one ageing PC and one person.
Tools that solve this
3 named so far, and where each one stops.
- Emulators (86Box, DOSBox, PCem)
Run old software, but not hardware cards and dongles without expert setup.
- Used period hardware on eBay
Buys time, with failing parts.
- Local IT consultants
Few still know ISA, GPIB and parallel port dongles.
How you might build it
- 01Disk imaging and virtualisation
- 02Cycle accurate emulation (86Box)
- 03ISA and GPIB to USB bridges
- 04Dongle emulation where licensed
- 05Runbook documentation
#NOV27 · Canonical URL: https://www.realproblem.ai/idea/how-do-i-keep-a-business-running-on-an-old-dos-or-windows-xp-machine