| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 21012 | 34.2 % | ||
 | Windows XP | 10660 | 17.3 % |  |
 | Windows (unknown version) | 18 | 0 % | |
 | Windows NT | 136 | 0.2 % | |
 | Windows ME | 68 | 0.1 % | |
 | Windows Vista (LongHorn) | 1491 | 2.4 % | |
 | Windows Mobile | 30 | 0 % | |
 | Windows 98 | 41 | 0 % | |
 | Windows 95 | 100 | 0.1 % | |
 | Windows 2008 | 7557 | 12.3 % | |
 | Windows 2003 | 599 | 0.9 % | |
 | Windows 2000 | 308 | 0.5 % | |
 | Windows 3.xx | 4 | 0 % | |
| BSD | 1224 | 1.9 % | ||
 | OpenBSD | 163 | 0.2 % | |
 | NetBSD | 24 | 0 % | |
 | FreeBSD | 1037 | 1.6 % | |
| Linux | 33151 | 54 % | ||
 | Ubuntu | 10006 | 16.3 % | |
 | Suse | 488 | 0.7 % | |
 | Red Hat | 108 | 0.1 % | |
 | Mandriva (or Mandrake) | 269 | 0.4 % | |
 | Gentoo | 1309 | 2.1 % | |
 | Fedora | 736 | 1.1 % | |
 | Debian | 1050 | 1.7 % | |
 | Centos | 109 | 0.1 % | |
 | GNU Linux (Unknown or unspecified distribution) | 19076 | 31 % | |
| Macintosh | 2968 | 4.8 % | ||
 | Mac OS X | 2967 | 4.8 % | |
 | Mac OS | 1 | 0 % | |
| Others | 3012 | 4.9 % | ||
 | Unknown | 2866 | 4.6 % | |
 | Sun Solaris | 66 | 0.1 % | |
 | Unknown Unix system | 39 | 0 % | |
 | HP UX | 18 | 0 % | |
 | Symbian OS | 13 | 0 % | |
 | Sony PlayStation Portable | 8 | 0 % | |
 | OS/2 | 2 | 0 % | |