Microsoft has announced plans to release the Halo 2 video game for personal computers running its new Vista version of Windows.
Halo 2 will run only on Vista machines and not on older versions of the Windows operating system.
Microsoft did not release a delivery date for the new game.
An earlier version of Halo runs on older versions of Windows and Halo 2 is available for Xbox console.
There’s no word yet on a delivery date for the successor to Halo 2, which is under development for the new Xbox 360.