Hello All
If any one getting error(error parsing the server clients.xml file) after install esxi4.0 and unable to login from win7 and win2k8 u can download and istall from vmware (VMware-VMvisor-Installer-4.0.0.Update01-208167.x86_64_2) in triel or license and i am sure it will be working once you will install client in win7 and win2k8 becasue I had the same issue now its rslvd.
Enjoy guys pc in a pc in pc in pc in pc.................... called vmware.