Context here (Jeff Atwood's blog post dated 2007): https://blog.codinghorror.com/bill-gates-and-donkey-bas/
http://s3.amazonaws.com/scardigest/wp-content/uploads/Aston-...
https://i2.wp.com/farm7.static.flickr.com/6190/6095678527_cc...
http://sportscarcraftsmen.com/wp-content/uploads/2014/04/MGA...
Found from some rather more shady-looking sites, but it points back to download.microsoft.com, so I suppose it's legit.