Debugging Windows Remote Installation Services (RIS) can be problematic. Here are some assorted notes on the process: Getting hold of the files ========================= Add/Remove Windows Components -> Remote Installation Services Files will be placed in \windows\system32\reminst. Copy them out to a TFTP server. Configure DHCP to hand out startrom.com. Getting past the "Press F12" message ==================================== Passing F12 through to the guest machine is difficult. It's easier to patch the startrom.com binary to accept a different key. Open startrom.com in a hex editor, search for the hex string 6681fb00860000, and replace it with 6681fb66210000. startrom.com will now accept the "F" key instead of "F12". DHCP filename ============= Must use Windows backslash separator e.g. 'filename "OSChooser\\i386\\startrom.com";', otherwise startrom.com fails to correctly identify the path to NTLDR.