I used to work at Amazon.com's warehouses and I would see Microsoft software come through ALL the time.
I became EXTREMELY familiar with the shape.
I agree that it looks like the case for Windows 7, or really, almost any Microsoft software, since they use the same shape case for most of their stuff. If it IS, then they only slightly touched it up to differentiate it from a case.

SW-5120-1900-6153














