HP, Microsoft to sell harder to businesses Summary: The PC maker and the software giant share 20,000 enterprise customers. The stepping-up of their partnership could enable Microsoft to compete better with IBM. December 14, 2006 -- 00:20 GMT (16:20 PST) Loading... Please wait. Topics: Microsoft, Hewlett-Packard Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.