“In a court filing related to its private antitrust suit against
Microsoft, Caldera alleged that the software giant planted error
messages in a Windows 3.1 beta in order to scare off users of a
competing operating system.
“Caldera, which publishes DR-DOS, a competing product to MS-DOS,
said Microsoft, the world’s largest software company, misled the
public about DR-DOS’s compatibility with Windows…”