Hi, I'm just wondering whether somebody can point me in the right direction, I am trying to find a way to be able to incorporate multiple product keys so that each client gets a different serial key. I know that I can modify the sif file each time and change the product key but what if, say for example, I want to carry out unattended installs on 3-5 computers simultaneously? So, basically, is there a way to have multiple sif files, each containing different product keys and will it be possible to send a different one to each client? OR is there a way to send a batch file to the client first which will check the clients ip address and based on IP it will download the appropriate sif file. For example: client1: 192.168.0.100 would get the sif file called: 100.sif and client 2: 192.168.0.101 would get 101.sif etc. Or any other pointers please? ive searched all over the place with no joy. Bearing in mind this is not volume licensing so each client needs a different product key. I even tried to see if the key could be changed after install but that's not possible via command line or batch files from what I found.. Any help would be appreciated. p.s Im using windows xp as RIS via tftpd32 and that works fine, installation etc is all working. Thanks