| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 4218741 | 82.9 % | ||
 | Windows XP | 1307834 | 25.7 % |  |
 | Windows Vista | 13099 | 0.2 % | |
 | Windows (unknown version) | 1070 | 0 % | |
 | Windows NT | 1745 | 0 % | |
 | Windows ME | 111 | 0 % | |
 | Windows Vista (LongHorn) | 627985 | 12.3 % | |
 | Windows Mobile | 3 | 0 % | |
 | Windows 98 | 228 | 0 % | |
 | Windows 95 | 16 | 0 % | |
 | Windows 2008 | 2240012 | 44 % | |
 | Windows 2003 | 18729 | 0.3 % | |
 | Windows 2000 | 7905 | 0.1 % | |
 | Windows 3.xx | 4 | 0 % | |
| BSD | 312 | 0 % | ||
 | OpenBSD | 109 | 0 % | |
 | FreeBSD | 203 | 0 % | |
| Linux | 272653 | 5.3 % | ||
 | Ubuntu | 28519 | 0.5 % | |
 | Suse | 1452 | 0 % | |
 | Red Hat | 1201 | 0 % | |
 | Mandriva (or Mandrake) | 350 | 0 % | |
 | Gentoo | 2 | 0 % | |
 | Fedora | 6417 | 0.1 % | |
 | Debian | 1128 | 0 % | |
 | Centos | 1935 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 231649 | 4.5 % | |
| Macintosh | 565551 | 11.1 % | ||
 | Mac OS X | 565542 | 11.1 % | |
 | Mac OS | 9 | 0 % | |
| Others | 26980 | 0.5 % | ||
 | Unknown | 26021 | 0.5 % | |
 | Sun Solaris | 482 | 0 % | |
 | Symbian OS | 356 | 0 % | |
 | Unknown Unix system | 115 | 0 % | |
 | RISC OS | 6 | 0 % | |