Microsoft knew of the XML patent is was allegedly violating in Word

Court documents show Microsoft was aware of the patent as early as 2001

A patent infringement case brought by Toronto-based i4i resulted in $290 million judgment against Microsoft and an injunction that bars Microsoft from selling Word 2003, Word 2007 and Word for Mac 2008 in their current forms. Microsoft knew of the patent held by i4i as early as 2001, but instead set out to make the Canadian developer's software "obsolete" by adding a feature to Word, according to court documents.

In 2001, Microsoft employees involved in the XML for Word development team were reportedly forwarding e-mails to each other from i4i that discussed the patent. The injunction stops Microsoft from selling Word 2003, Word 2007, Word 2008 for Mac, and would even stop Word 2010 after it is released unless the company changes or removes the word processing programs' custom XML feature. Microsoft has until Oct. 20 to comply. Read more.

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