Adobe Goes After 27-Year Old 'Pirated' Copy of Acrobat Reader 1.0 for MS-DOS * TorrentFreak
torrentfreak.com
Adobe asked Twitter to remove a tweet because it linked to an unauthorized MS-DOS copy of a 27-year old release of Acrobat Reader 1.0.

In a recent tweet, Hyppönen mentioned that the software company removed one of his tweets that linked to an old copy of Acrobat Reader for MS-DOS. This software, hosted on WinWorld, came out more than 27-years ago, shortly after the PDF was invented.