Microsoft got some good news Sunday as metrics company Net Applications said Windows 8's user share in August is now larger than Vista's at the same point in the latter's post-launch timeline. Windows 8's user share of all PCs running Windows, a tally that included Windows 8.1, the update slated to ship next month, jumped to 8.4 percent in August, Net Applications said Sunday. The 2.5-point gain was a single-month record for the struggling OS, and more than double the previous record set in June.