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.

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

"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/

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