Microsoft is the latest in the long list of companies subpoenaed by AMD in it's anti-trust case against Intel. AMD hopes to explore "Microsoft's decision to develop software for AMD's 64-bit CPUs, and the timing and schedule for development of that software".

Information Week reports:
A Microsoft spokeswoman said the Redmond, Wash., software maker is not a party to the lawsuit. "We anticipate that both sides will be seeking documents and other evidence from Microsoft and many other participants in the PC industry," the spokeswoman said. "We will work with the parties in this case to respond to reasonable requests for documents and information."

This news article was written on April 16, 2006, quoting Information Week.