November 10, 2003 Microsoft releases Microsoft Virtual PC, which is machine-level virtualization technology, to ease the transition to Windows XP. 2005 HP releases Integrity Virtual Machines 1.0 and 1.2 which ran only HP-UX October 24, 2005 VMware releases VMware Player, a free player for virtual machines, to the masses. Sun releases Solaris (operating system) 10, including Solaris Zones, for both x86/x64 and SPARC systems 2006 July 12, 2006 VMware releases VMware Server, a free machine-level virtualization product for the server market.