| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 10434613 | 56.2 % | ||
 | Windows XP | 7039745 | 37.9 % |  |
 | Windows Vista | 15 | 0 % | |
 | Windows (unknown version) | 97727 | 0.5 % | |
 | Windows NT | 219183 | 1.1 % | |
 | Windows ME | 12869 | 0 % | |
 | Windows Vista (LongHorn) | 1868484 | 10 % | |
 | Windows Mobile | 2433 | 0 % | |
 | Windows 98 | 423873 | 2.2 % | |
 | Windows 95 | 7963 | 0 % | |
 | Windows 2008 | 221249 | 1.1 % | |
 | Windows 2003 | 237583 | 1.2 % | |
 | Windows 2000 | 301560 | 1.6 % | |
 | Windows 3.xx | 1929 | 0 % | |
| BSD | 21089 | 0.1 % | ||
 | OpenBSD | 1856 | 0 % | |
 | NetBSD | 2169 | 0 % | |
 | BSDi | 1 | 0 % | |
 | FreeBSD | 17063 | 0 % | |
| Linux | 3025934 | 16.3 % | ||
 | Ubuntu | 1152118 | 6.2 % | |
 | Suse | 294778 | 1.5 % | |
 | Red Hat | 144546 | 0.7 % | |
 | Mandriva (or Mandrake) | 36070 | 0.1 % | |
 | Gentoo | 28326 | 0.1 % | |
 | Fedora | 351114 | 1.8 % | |
 | Debian | 234583 | 1.2 % | |
 | Centos | 92995 | 0.5 % | |
 | GNU Linux (Unknown or unspecified distribution) | 691404 | 3.7 % | |
| Macintosh | 1026889 | 5.5 % | ||
 | Mac OS X | 1017520 | 5.4 % | |
 | Mac OS | 9369 | 0 % | |
| Others | 4036116 | 21.7 % | ||
 | Unknown | 3981676 | 21.4 % | |
 | Sun Solaris | 44532 | 0.2 % | |
 | Symbian OS | 5600 | 0 % | |
 | Unknown Unix system | 1347 | 0 % | |
 | Irix | 807 | 0 % | |
 | Sony PlayStation | 639 | 0 % | |
 | HP UX | 602 | 0 % | |
 | OS/2 | 203 | 0 % | |
 | Nintendo Wii | 188 | 0 % | |
 | Aix | 187 | 0 % | |
 | OSF Unix | 87 | 0 % | |
 | RISC OS | 73 | 0 % | |
 | AmigaOS | 61 | 0 % | |
 | CP/M | 53 | 0 % | |
 | BeOS | 28 | 0 % | |
 | VMS | 23 | 0 % | |
 | Dreamcast | 5 | 0 % | |
 | WebTV | 4 | 0 % | |
 | Commodore 64 | 1 | 0 % | |