Can I still play these with Windows XP or above?

Mechcommander, Quake 1-4, Mechwarrior 3-4, Doom 3, Starcraft, Command and Conquer 1-3 (All of them).... Is it possible for me to play any of these old favorites on a system with Windows XP or higher? If so, where can I find the necessary patches, updates, etc...? Please help so I may once again enjoy these fine clics.