Recently Microsoft released Language pack for Internet Explorer 9.0 Release Candidate (RC) for Windows 7 via Windows Update.
But if you take a look carefully at its description, you'll see Microsoft's blunder.
As you can see in the above screenshot, The update is for Windows 7 but the description mentions Windows Vista for license terms. it seems someone copied the description from Windows Vista update but forgot to replace the word "Vista" with "7".
Thanks to our active reader "leomate" for finding it...