nProtect GameGuard recently added support for Windows 7. *As a result, Phantasy Star Universe on PC received a number of updates to the program last night. *Users are now reporting that it can be played on Windows 7 RC2 (Build 7201) without the issues seen before. *With this update, both 32-bit and 64-bit versions are supported.
Microsoft plans to release the full retail version of Windows 7 on October 22, 2009.
More on the GameGuard/Windows 7 support timeline can be found at this official forum thread.
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