Windows Me may not have had much going for it, but it has one claim to fame: It was the last major release of Windows to come in a single edition, or SKU.
In the ensuing decade, every major release of desktop Windows has come in a wide -- too wide, say many -- variety of flavors.
Even Windows 2000, often romanticized for its small footprint, came in four versions.
This increase in Windows edition has bewildered many consumers and led even ardent Windows fans to make dark jokes.
Paul Thurrott, a well-known Windows blogger, said, "It is laughable. It's such a brazen play on their part to juice people for as much money as they can get."
This MBA textbook-style attempt to maximize revenue by divvying up features by customer segment is actually hurting Microsoft, said Rob Enderle, an independent analyst.
He said Microsoft's decision to strip Active Directory features from consumer versions of Vista meant that workers running Macs at home or on personal laptops have an easier time hooking up to their corporate network than many Vista users.
That is helping Apple gain the foothold in the enterprise it has long been denied, Enderle said.
"In effect, this screwy SKU thing has given Apple an advantage in enterprises that Microsoft has taken away from itself and probably will be one of the primary things slowing Windows 7 adoption" should it come in multiple editions, he said.