All corrections
Wikipedia March 17, 2026 at 11:49 AM

en.wikipedia.org/wiki/AARD_code

1 correction found

1
Claim
DR DOS publisher Digital Research released a patch named "business update" in 1992 to bypass the AARD code.
Correction

This appears to be wrong. Geoff Chappell’s analysis says the 1992 DR DOS 6.0 update still failed the AARD tests, and Matthias Paul’s DR DOS history places known AARD workarounds in Novell DOS 7 releases from 1994, not a 1992 "business update."

Full reasoning

The claim says a 1992 DR DOS "business update" bypassed the Windows 3.1 AARD code. Two technical historical sources contradict that.

  1. Geoff Chappell’s analysis of surviving DR DOS binaries says Wikipedia’s dating is wrong and gives a table of tested builds showing:

    • DR DOS 6.0, 7 April 1992 — fail
    • DR DOS 6.0, 19 March 1993 — fail
    • Novell DOS 7.0, 26 January 1994 — pass

    In other words, the 1992 DR DOS 6.0 update did not bypass the AARD checks.

  2. Matthias Paul’s DR DOS history / RBIL notes likewise say that Novell DOS 7 Beta 3 (September 1993) “does not have workarounds for Windows 3.1 ‘AARD’ code” and that the German Novell DOS 7 release (22 February 1994) “is known to have workarounds for Windows 3.1 ‘AARD’ code.” That is incompatible with the article’s statement that a 1992 DR DOS patch already bypassed AARD.

So the article’s sentence is misleading on both timing and effect: the April 1992 DR DOS 6.0 update was not the AARD-bypassing release, and documented AARD workarounds appear later, in Novell DOS 7-era releases from 1994.

2 sources
  • AARD Research by Digital Research — Geoff Chappell

    According to both, a "business update" of DR DOS passed the AARD code's tests in 1992... I survey the public record and argue that Wikipedia is incorrect... Version Date on System Files AARD Tests ... 6.0 7th April 1992 fail ... 6.0 19th March 1993 fail ... 7.0 26th January 1994 pass.

  • RBIL / 25 Years of DR-DOS History notes

    Novell DOS 7 "Panther/Smirnoff" BETA 3 (09/1993) (This issue does not have workarounds for Windows 3.1 "AARD" code) ... Novell DOS 7 German release (1994-02-22) (This issue is known to have workarounds for Windows 3.1 "AARD" code).

Model: OPENAI_GPT_5 Prompt: v1.16.0