| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 29916978 | 85.7 % | ||
 | Windows XP | 12909604 | 37 % |  |
 | Windows Vista | 9661 | 0 % | |
 | Windows (unknown version) | 41232 | 0.1 % | |
 | Windows NT | 13439 | 0 % | |
 | Windows ME | 10515 | 0 % | |
 | Windows Vista (LongHorn) | 4067908 | 11.6 % | |
 | Windows Mobile | 1279 | 0 % | |
 | Windows 98 | 39971 | 0.1 % | |
 | Windows 95 | 2715 | 0 % | |
 | Windows 2008 | 12242762 | 35 % | |
 | Windows 2003 | 378659 | 1 % | |
 | Windows 2000 | 198197 | 0.5 % | |
 | Windows 3.xx | 1036 | 0 % | |
| BSD | 383 | 0 % | ||
 | OpenBSD | 106 | 0 % | |
 | NetBSD | 5 | 0 % | |
 | FreeBSD | 272 | 0 % | |
| Linux | 946500 | 2.7 % | ||
 | Ubuntu | 47781 | 0.1 % | |
 | Suse | 14531 | 0 % | |
 | Red Hat | 384 | 0 % | |
 | Mandriva (or Mandrake) | 267 | 0 % | |
 | Gentoo | 518 | 0 % | |
 | Fedora | 2805 | 0 % | |
 | Debian | 8793 | 0 % | |
 | Centos | 517 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 870904 | 2.4 % | |
| Macintosh | 2945375 | 8.4 % | ||
 | Mac OS X | 2945170 | 8.4 % | |
 | Mac OS | 205 | 0 % | |
| Others | 1076971 | 3 % | ||
 | Unknown | 1058506 | 3 % | |
 | Symbian OS | 9393 | 0 % | |
 | Sun Solaris | 5789 | 0 % | |
 | Nintendo Wii | 1502 | 0 % | |
 | Sony PlayStation Portable | 1077 | 0 % | |
 | Unknown Unix system | 389 | 0 % | |
 | OS/2 | 300 | 0 % | |
 | BeOS | 5 | 0 % | |
 | OSF Unix | 2 | 0 % | |
 | RISC OS | 2 | 0 % | |
 | Irix | 2 | 0 % | |
 | AmigaOS | 2 | 0 % | |
 | HP UX | 2 | 0 % | |