well its an error message of sorts, i preordered Win 7 from Amazon, when it turned up i installed, and 2 weeks later was having unrelated internet problems,
the call to the ISP went as follows
ISP: Sir what Operating syste is on your computer?
Me: Its Windows 7
ISP: So is that XP or Vista?
Me: Neither, its the new Operating system from Microsoft, Windows 7 it came out last month
ISP So thats XP build 7 yes?
suffice to say at that point i hung up and phoned back to get someone who actually knew what a computer was...