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WatchingNewsWatching1 independent reports10

Developer Recreates Windows 3.1 Program Manager in One Hour Using Claude Code

First seen · 9/10/2026, 07:19 PMLatest activity · 9/10/2026, 07:19 PM

Developer Mayuki used Anthropic's Claude Code to recreate Windows 3.1's classic Program Manager (progman.exe) in roughly an hour. Dubbed ReProgman, the MIT-licensed open-source tool weighs under 16MB and runs cross-platform on Windows 11 and macOS via .NET. While it functions as a retro launcher for modern files, the creator wryly noted the novelty lasts about thirty seconds. It offers an amusing, tangible snapshot of modern AI coding agility exhuming legacy interfaces.

Event heat · last 24 hours

There are 8 persisted snapshots in the last 24 hours. Peak heat was 10 at 9/12, 17:00; latest heat is 10.

There are 8 persisted snapshots in the last 24 hours. Peak heat was 10 at 9/12, 17:00; latest heat is 10.10509/12, 17:00, event heat 109/12, 20:00, event heat 109/12, 23:00, event heat 109/13, 02:00, event heat 109/13, 05:00, event heat 109/13, 08:00, event heat 109/13, 11:00, event heat 109/13, 14:00, event heat 1024 hours agoNow
  1. 9/12, 17:00, event heat 10
  2. 9/12, 20:00, event heat 10
  3. 9/12, 23:00, event heat 10
  4. 9/13, 02:00, event heat 10
  5. 9/13, 05:00, event heat 10
  6. 9/13, 08:00, event heat 10
  7. 9/13, 11:00, event heat 10
  8. 9/13, 14:00, event heat 10

Reporting Timeline

  1. MediaIT之家9/10, 07:19 PMRepresentative
    Developer Recreates Windows 3.1 Program Manager in One Hour Using Claude Code