
Microsoft is taking a stand on an emerging technology that threatens to reshape software pricing models. The company is expected to detail changes to its server product licensing <A HREF="http://news.zdnet.com/2100-3513_22-5892155.html?tag=nl.e589">to better accommodate virtualization software,</A> an emerging technology that big companies are eyeing as a way to consolidate servers and cut costs. Advocates argue that virtualization lets companies reduce the number of servers they need by letting jobs run more efficiency on a smaller number of machines. Virtualization software such as Microsoft's Virtual Server, EMC's VMware, and XenSource's Xen lets a server simultaneously run multiple operating systems, or multiple instances of the same operating system. Each instance essentially behaves as a self-contained computer.