| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 21304 | 46.9 % | ||
 | Windows XP | 4229 | 9.3 % |  |
 | Windows Vista | 2568 | 5.6 % | |
 | Windows NT | 2 | 0 % | |
 | Windows Vista (LongHorn) | 597 | 1.3 % | |
 | Windows 98 | 1 | 0 % | |
 | Windows 95 | 1 | 0 % | |
 | Windows 2008 | 13774 | 30.3 % | |
 | Windows 2003 | 112 | 0.2 % | |
 | Windows 2000 | 20 | 0 % | |
| BSD | 194 | 0.4 % | ||
 | OpenBSD | 63 | 0.1 % | |
 | NetBSD | 50 | 0.1 % | |
 | FreeBSD | 81 | 0.1 % | |
| Linux | 13873 | 30.5 % | ||
 | Ubuntu | 1028 | 2.2 % | |
 | Suse | 118 | 0.2 % | |
 | Red Hat | 103 | 0.2 % | |
 | Mandriva (or Mandrake) | 25 | 0 % | |
 | Gentoo | 3 | 0 % | |
 | Fedora | 83 | 0.1 % | |
 | Debian | 17 | 0 % | |
 | Centos | 43 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 12453 | 27.4 % | |
| Macintosh | 8530 | 18.7 % | ||
 | Mac OS X | 8456 | 18.6 % | |
 | Mac OS | 74 | 0.1 % | |
| Others | 1496 | 3.2 % | ||
 | Unknown | 1430 | 3.1 % | |
 | Sun Solaris | 33 | 0 % | |
 | Unknown Unix system | 32 | 0 % | |
 | Aix | 1 | 0 % | |