http://blogs.technet.com/b/jhoward/archive/2006/04/12/425092.aspx....so I have to thank my bosses boss for pointing this one out (and I guess this means I've also found out who the third reader of this blog is :) ), but there's also a little known method, SetConfigurationValue, in the Virtual Server 2005 R2 COM APIen-GBTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.technet.com/b/jhoward/archive/2006/04/12/425092.aspx#425569Tue, 18 Apr 2006 20:39:18 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:425569John Howard -MSFTYes, appreciate that - changing the BIOS hex string is the unsupported part :( &nbsp;I was just posting that rather than rolling your own XML parser as indicated in the linked posting, there is an API to update the config file in a supported way, just not that part of the config file. <br>Cheers, <br>John.<div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=425569" width="1" height="1">http://blogs.technet.com/b/jhoward/archive/2006/04/12/425092.aspx#425513Tue, 18 Apr 2006 14:28:02 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:425513GuenterNot much help for changing boot priority to PXE. &nbsp;You still have to know the right hex-string and this one changes i.e. if you add a network card. <br><div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=425513" width="1" height="1">