[VMware, Inc. ESXi 5]

Deploying ESXi 5.0 using the Scripted Install feature

http://kb.vmware.com/selfservice/search.do?cmd=displayKC&docType=kc&externalId=2004582

Create a VMware ESXi 5 PXE unattended scripted installation using Windows

http://www.ivobeerens.nl/2011/09/20/create-vmware-esxi-5-pxe-unattended-scripted-installation-using-windows/