| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 13179106 | 61.1 % | ||
 | Windows XP | 10309484 | 47.8 % |  |
 | Microsoft XBOX | 1 | 0 % | |
 | Windows NT | 320387 | 1.4 % | |
 | Windows ME | 21001 | 0 % | |
 | Windows Vista (LongHorn) | 1380626 | 6.4 % | |
 | Windows Mobile | 2050 | 0 % | |
 | Windows 98 | 391333 | 1.8 % | |
 | Windows 95 | 18206 | 0 % | |
 | Windows 2003 | 216687 | 1 % | |
 | Windows 2000 | 517992 | 2.4 % | |
 | Windows 3.xx | 1339 | 0 % | |
| BSD | 25441 | 0.1 % | ||
 | OpenBSD | 2029 | 0 % | |
 | NetBSD | 1552 | 0 % | |
 | BSDi | 1 | 0 % | |
 | FreeBSD | 21859 | 0.1 % | |
| Linux | 3149994 | 14.6 % | ||
 | Ubuntu | 605763 | 2.8 % | |
 | Suse | 322097 | 1.4 % | |
 | Red Hat | 130930 | 0.6 % | |
 | Mandriva (or Mandrake) | 42809 | 0.1 % | |
 | Fedora | 372126 | 1.7 % | |
 | Debian | 273081 | 1.2 % | |
 | Centos | 66312 | 0.3 % | |
 | GNU Linux (Unknown or unspecified distribution) | 1336876 | 6.2 % | |
| Macintosh | 920978 | 4.2 % | ||
 | Mac OS X | 888824 | 4.1 % | |
 | Mac OS | 32154 | 0.1 % | |
| Others | 4281659 | 19.8 % | ||
 | Unknown | 4218203 | 19.5 % | |
 | Sun Solaris | 52577 | 0.2 % | |
 | Unknown Unix system | 2364 | 0 % | |
 | Symbian OS | 2222 | 0 % | |
 | Irix | 1415 | 0 % | |
 | Aix | 915 | 0 % | |
 | HP UX | 876 | 0 % | |
 | VMS | 865 | 0 % | |
 | CP/M | 565 | 0 % | |
 | Sony PlayStation | 550 | 0 % | |
 | OSF Unix | 386 | 0 % | |
 | RISC OS | 246 | 0 % | |
 | OS/2 | 178 | 0 % | |
 | WebTV | 127 | 0 % | |
 | BeOS | 92 | 0 % | |
 | AmigaOS | 59 | 0 % | |
 | Commodore 64 | 19 | 0 % | |