Microsoft: Vista sells nearly 40 million licenses in first 100 days

In case you're keeping track, nearly 40 million Microsoft Vista licenses have been sold in its first 100 days. According to Billy G, 78% of all sales made since the January 30th launch had been for the software's premium versions. Not bad, in fact, pretty damn impressive leaving little doubt that this is Microsoft's most successful OS (measure by rate of sale) ever with record profits sure to follow.