| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 28629633 | 44.6 % | ||
 | Windows XP | 8518678 | 13.2 % |  |
 | Microsoft XBOX | 12 | 0 % | |
 | Windows Vista | 377911 | 0.5 % | |
 | Windows (unknown version) | 126196 | 0.1 % | |
 | Windows NT | 7308 | 0 % | |
 | Windows ME | 1604 | 0 % | |
 | Windows Vista (LongHorn) | 1350831 | 2.1 % | |
 | Windows Mobile | 5891 | 0 % | |
 | Windows 98 | 12741 | 0 % | |
 | Windows 95 | 1319 | 0 % | |
 | Windows 2008 | 17924221 | 27.9 % | |
 | Windows 2003 | 235180 | 0.3 % | |
 | Windows 2000 | 65163 | 0.1 % | |
 | Windows 3.xx | 2578 | 0 % | |
| BSD | 179470 | 0.2 % | ||
 | OpenBSD | 29048 | 0 % | |
 | NetBSD | 9404 | 0 % | |
 | GNU/kFreeBSD | 168 | 0 % | |
 | FreeBSD | 140850 | 0.2 % | |
| Linux | 29345472 | 45.7 % | ||
 | Zenwalk GNU Linux | 2296 | 0 % | |
 | Vine Linux | 1506 | 0 % | |
 | VectorLinux | 2172 | 0 % | |
 | Ubuntu | 2251110 | 3.5 % | |
 | Suse | 107917 | 0.1 % | |
 | Red Hat | 30053 | 0 % | |
 | PCLinuxOS | 27082 | 0 % | |
 | Momonga Linux | 37 | 0 % | |
 | Mandriva (or Mandrake) | 32601 | 0 % | |
 | Gentoo | 6599 | 0 % | |
 | Fedora | 72645 | 0.1 % | |
 | Debian | 131108 | 0.2 % | |
 | Centos | 27898 | 0 % | |
 | Google Android | 718883 | 1.1 % | |
 | GNU Linux (Unknown or unspecified distribution) | 25933565 | 40.4 % | |
| Macintosh | 3345390 | 5.2 % | ||
 | Mac OS X | 3342694 | 5.2 % | |
 | Mac OS | 2696 | 0 % | |
| Others | 2638644 | 4.1 % | ||
 | Unknown | 2402750 | 3.7 % | |
 | Java Mobile | 85267 | 0.1 % | |
 | Unknown Unix system | 58335 | 0 % | |
 | BlackBerry | 35557 | 0 % | |
 | Sun Solaris | 22144 | 0 % | |
 | Symbian OS | 19820 | 0 % | |
 | Java | 6366 | 0 % | |
 | Sony PlayStation | 5062 | 0 % | |
 | OS/2 | 1088 | 0 % | |
 | Nintendo Wii | 1054 | 0 % | |
 | BeOS | 422 | 0 % | |
 | Syllable | 253 | 0 % | |
 | AmigaOS | 153 | 0 % | |
 | iPhone OS (iPhone/iPod) | 128 | 0 % | |
 | RISC OS | 85 | 0 % | |
 | CP/M | 62 | 0 % | |
 | Irix | 58 | 0 % | |
 | GNU Hurd | 34 | 0 % | |
 | WebTV | 5 | 0 % | |
 | HP UX | 1 | 0 % | |