Caldera has filed a statement alleging Microsoft committed a number of anti-competitive acts, in the latest stage of the companies' three-year legal battle.
The vendor filed the 188-page legal document in preparation for the federal courtroom show-down which will start on 25 May. Caldera has accused Microsoft of misusing its monopoly position to push DR-Dos, a competing operating system, out of the market. Caldera filed its case in 1996 after acquiring the rights to DR-Dos from Novell.
Caldera's filing contains five main accusations of illegal conduct by Microsoft:
Microsoft established licensing restrictions on OEMs, making it more difficult for them to ship competing operating systems.
Microsoft deliberately attempted to make Windows 3.1 incompatible with DR-Dos.
Microsoft issued 'vapourware' announcements to freeze the market, harming DR-Dos sales - for instance, when it pre-announced the release of MS-Dos 5.
Microsoft issued false and misleading statements to create 'fear, uncertainty and doubt' about DR-Dos compatibility.
Microsoft illegally tied Windows to MS-Dos when it shipped Windows 95.
Microsoft dismissed the claims and labelled the document as 'pulp fiction'.
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