Others concurred.

"Too little, too late," said later. "You really dropped the ball on this [one], Microsoft."

"Either release a browser more than once a year, or give up. It's simple as that," added another commenter.

Without Windows 7's backing, IE10 has little chance of building appreciable market share on Windows 8 and Windows RT. Last month, for example, Windows 8 accounted for only 0.33% of all computers running Windows, or 33 out of every 10,000 Windows machines.

That number was than Windows 7 share a month before it shipped in October 2009.