I have a client I recently acquired that has an SBS 2003 Premium x86 server that is not working properly. The DNS service will not start, I have tried troubleshooting it and attempted every fix I could find online for: "error 14, no disk storage available". In addition there are several other issues such as certain services not starting when they are configured to automatically start, the NT backup feature is not functional, the 3rd party imaging software the prior IT guy had installed will not open without the DNS service started etc.. Without NT backup I cannot perform a system state backup. The server is running Exchange 2003, SQL 2005 databases, and has GP, Active Directory, DHCP, and DNS configurations I would need backed up before I would want to attempt an OS clean install. I booted off from the media disks which appear to be retail and there is no Repair Install Option available. I heard that if you boot to the OS disk within the OS and do an upgrade install it will act as a repair install much the same as WIndows 7 upgrade install works with a Windows 7 disk. Can anyone confirm this to be true or point me in a direction to effectively backup the system state, IE Exchange, Active Directory, Group Policy, DHCP configs, DNS zones and if possible the SQL databases. Again NT backup will not work and DNS cannot start, I have also troubleshot the NT backup error and event log errors to no avail. In addition SHadow Protect will not install at the moment because of how damaged some of the services and possibly DLL files are damaged. I have attempted to re-register all the DLL files, I have ran SFC/ Scannow and re-installed Service Pack 2 files. Any help would be appreciated. This is an URGENT matter, thank you in advance.