File Missing And Home Prem CRASH!

Installed Hitman game. When I attempted to start game, receieved error that a file was missing. From my memory, it was something like MSVLL771.dll (not accurate, but close). Vista prompted me that it could find the problem and then recommended a download. It was an update in the realm of Framework 1.1- something or other. After downloading and attempted implementation, Vista let me know this program was already on my PC. I did an internet search for the "missing" file and downloaded it specificly and placed in the game's file. The game now ran with no problem.

Yet, at the next boot up of PC it crashed to the "problem" screen. At this point I was able to use safe mode and attempt a recovery by going back to an earlier save point. Did this and reboot. Now PC crashes again and now will not start in any mode (safe, normal, safe with networking, etc) By not start, I mean I get past the prompt asking which mode to start, screen goes blank, no Vista load, just a cursor. The LED light seems to be processing, yet nothing happens from here. I placed Vista disk in to boot from it to Fix and Re-install, but this does not help. After a few steps it goes to a driver selection screen with no drivers available. Lets me browse, but I have no clue where to look for these?