Why is my Platform environment variable defined as 'BNB'?

Something, maybe the windows sdk or visual studio installer开发者_开发问答, has defined the Platform environment variable and given it the value BNB.

What does BNB mean, and why is Platform set to BNB?

Thanks.

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I've seen this, but it doesn't answer my question:

http://social.msdn.microsoft.com/Forums/en-US/msbuild/thread/1d229d75-aa89-42bf-809b-ef98f42072bb

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"HP Easy Setup" ? It creates a PLATFORM environmental variable that msbuild will default to if its not directly provided, see http://social.msdn.microsoft.com/forums/en-US/roboticssimulation/thread/8c158025-c48e-4ae1-9921-b8ee4f390bac/

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I used the EnvironmentVariables route, this worked & no reboot required