Micrsoft Virtual wifi miniport adapter

What is Micrsoft Virtual wifi miniport adapter? I just went to update device drivers and right clicked it and clicked update. it found a update but windows told me it isn’t from a trust source so i just went and updated it. Just wondering if you guys have the driver on your windows 7 pc also?

Edit: Basically don’t you agree that it was odd of windows 7 saying it doesn’t come from a trusted source?

http://answers.microsoft.com/en-us/windows/forum/windows_7-networking/what-is-microsoft-virtual-wifi-miniport-adapter/78a96f27-ae98-42e1-891d-e8651cd99748