| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 16979121 | 85.2 % | ||
 | Windows XP | 4181690 | 20.9 % |  |
 | Windows (unknown version) | 16259 | 0 % | |
 | Windows NT | 11072512 | 55.5 % | |
 | Windows Me | 271 | 0 % | |
 | Windows Vista | 1608142 | 8 % | |
 | Windows CE | 103 | 0 % | |
 | Windows 98 | 40 | 0 % | |
 | Windows 95 | 60 | 0 % | |
 | Windows 2003 | 53201 | 0.2 % | |
 | Windows 2000 | 46547 | 0.2 % | |
 | Windows 3.xx | 296 | 0 % | |
| BSD | 1113 | 0 % | ||
 | OpenBSD | 4 | 0 % | |
 | FreeBSD | 1109 | 0 % | |
| Linux | 867405 | 4.3 % | ||
 | Ubuntu | 31403 | 0.1 % | |
 | Suse | 918 | 0 % | |
 | Red Hat | 29 | 0 % | |
 | Fedora | 291 | 0 % | |
 | Debian | 947 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 833817 | 4.1 % | |
| Macintosh | 1570519 | 7.8 % | ||
 | Mac OS X | 1570495 | 7.8 % | |
 | Mac OS | 24 | 0 % | |
| Others | 507746 | 2.5 % | ||
 | Unknown | 500241 | 2.5 % | |
 | Symbian OS | 5987 | 0 % | |
 | Unknown Unix system | 1375 | 0 % | |
 | Sony PlayStation Portable | 139 | 0 % | |
 | Sun Solaris | 3 | 0 % | |
 | HP UX | 1 | 0 % | |