It seems that Halo 2, the sequel to the very popular Halo video game, will only be playable on the upcoming Microsoft Vista operating system for the PC platform. Bungie Studios, developer of the Halo video games, claims that the move to make the game Vista-only isn't to force people to purchase the new operating system, though the official Bungie explanation as to why is not so clear:

"As Bungie Studios and Microsoft are dedicated to delivering a top quality translation of Halo 2 for the PC, their efforts require the use of the best available technological platform for Windows games. Windows Vista will help bring clarity to our customers and help them get more out of their personal computing experience, allowing them to focus on what matters most to them."

This news article was written on February 10, 2006, quoting Bungie.net.