I have an Avaya-branded server that runs Windows 2003 server and won't boot due to a corrupt pci.sys. I tried the bundled 2003 Server disc, but it threatened to erase the C drive, which was no good, and when I tried booting with a standard 2003 server disc, it couldn't see the C drive to do any type of repair. I can't even get to command prompt this way. All I need to do is access the C drive and restore a good pci.sys file, and I SHOULD be OK, but I can't figure out how to do that. Any thoughts?