| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 25172 | 27 % | ||
 | Windows XP | 18799 | 20.1 % |  |
 | Windows (unknown version) | 10 | 0 % | |
 | Windows NT | 16 | 0 % | |
 | Windows ME | 8 | 0 % | |
 | Windows Vista (LongHorn) | 2376 | 2.5 % | |
 | Windows Mobile | 13 | 0 % | |
 | Windows 98 | 46 | 0 % | |
 | Windows 95 | 2 | 0 % | |
 | Windows 2008 | 3336 | 3.5 % | |
 | Windows 2003 | 455 | 0.4 % | |
 | Windows 2000 | 111 | 0.1 % | |
| BSD | 978 | 1 % | ||
 | OpenBSD | 96 | 0.1 % | |
 | NetBSD | 147 | 0.1 % | |
 | FreeBSD | 735 | 0.7 % | |
| Linux | 50795 | 54.5 % | ||
 | Ubuntu | 16897 | 18.1 % | |
 | Suse | 946 | 1 % | |
 | Red Hat | 75 | 0 % | |
 | Mandriva (or Mandrake) | 604 | 0.6 % | |
 | Gentoo | 1743 | 1.8 % | |
 | Fedora | 2277 | 2.4 % | |
 | Debian | 5389 | 5.7 % | |
 | Centos | 218 | 0.2 % | |
 | GNU Linux (Unknown or unspecified distribution) | 22646 | 24.3 % | |
| Macintosh | 3217 | 3.4 % | ||
 | Mac OS X | 3197 | 3.4 % | |
 | Mac OS | 20 | 0 % | |
| Others | 12957 | 13.9 % | ||
 | Unknown | 12632 | 13.5 % | |
 | Sun Solaris | 307 | 0.3 % | |
 | Unknown Unix system | 8 | 0 % | |
 | OS/2 | 5 | 0 % | |
 | Sony PlayStation Portable | 4 | 0 % | |
 | Symbian OS | 1 | 0 % | |