Hello Guys,
I've been involving with other projects and push this back a little. I like to thank everyone for your comments. Here's what happen as of today. From Post-OS action I injected the script to Root\Windows\Panther\unattend.xml. Everything seems to be working except I have the computer LdHostname as the named of the computer after provisioning. It didn't get the name from LDMS database. In the script I have <ComputerName>ldHostname</ComputerName>. Any idea?