At the end of last week VMware updated its desktop virtualization platform Workstation and Player, as well as its platform wrapper ACE.
Workstation 7.1.1 (build 282343) only introduce support for ESX 4.1 as guest operating system. VMware introduced the capability to run its bare-metal hypervisor as a guest OS inside its hosted virtualization platform in Workstation 7.0, after the community requested the capability for a long, long time.
Player 3.1.1 and ACE 2.7.1 (build 282343) are for bug fixing only.