OS won't boot (deleting directx the cause)?

I have a three year old Dell Inspiron 1525 running Vista. I was having trouble with directx trying to play a game and accidentally deleted (now knowing that was extremely stupid). It takes 7-10 mins to load after that you just see the mouse then it just reboots. I do not have any system restores and want to recover my files before trying to wipe and reinstall the whole OS. I already tried to repair the system using the OS disc but it didn't seem to work. Anybody have any suggestions or advice to fix the problem or have a way to recover my files before I contact tech support?