There's an DHCP option which you can use to set the hostname: option host-name.
But I don't think you can set the Windows host name to what DHCP may offer. From this link: http://technet.microsoft.com/en-us/library/cc782411.aspx#w2k3tr_dhcp_tools_uzoj

"Host Name

This option specifies a host name for the client. In some cases, this name can also be fully qualified by appending the name value provided here with the DNS domain name, as specified in DHCP option 15. For Windows clients, this option is not supported for use when configuring the client’s host name, which is set for computers running Windows XP or Windows Server 2003 on the Computer Name tab in the System Properties dialog box on the client computer."

If you like to try it for other OS's you should enter this line in your dhcp.conf under the VMnetx section:

option host name = "name"

AWo
VCP / vEXPERT 2009