The result was that Microsoft had to modify Word 2007 so that it no longer infringes i4i's patent dealing with particular aspects of the use of XML.
That was achieved by January 11, and Microsoft also recently released updates that removes the offending feature from Word 2003.
An equivalent update for Word 2007 was released last month.
It appears that the updates were released so that the offending code can be removed from copies of the software that were already 'in the channel' by the injunction date, or to ensure that volume licensees can eliminate it from any additional newly-licensed copies they make.
According to Microsoft, customers "must install this update if you are instructed by Microsoft in a separate communication." [It would be interesting to learn whether customers are actually responsible in law in such a situation, or if this is merely a formality forced upon the company.]
What about existing copies, and what's this about a review of the appeal? Find out on page 2.
Existing licences are not affected by the court ruling, and nor are copies acquired for use outside the United States and its territories.
The company reportedly is concerned that the appeal hearing did not follow precedents.
The original verdict meant Microsoft also had to pay $US290 in damages.
According to Microsoft, Word 2010 does not breach i4i's patent, but i4i officials have reportedly said they will be looking closely at that program.
There are also suggestions that i4i may go after other applications that edit files containing 'custom XML' and that the list could include those supporting ODF (Open Document Format) 1.2 files.
ODF is a widely supported open format. Version 1.2 is currently under development.