| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 26153 | 51.8 % | ||
 | Windows XP | 10955 | 21.7 % |  |
 | Windows (unknown version) | 58 | 0.1 % | |
 | Windows NT | 87 | 0.1 % | |
 | Windows ME | 2 | 0 % | |
 | Windows Vista (LongHorn) | 3456 | 6.8 % | |
 | Windows Mobile | 3 | 0 % | |
 | Windows 98 | 15 | 0 % | |
 | Windows 95 | 3 | 0 % | |
 | Windows 2008 | 11119 | 22 % | |
 | Windows 2003 | 270 | 0.5 % | |
 | Windows 2000 | 142 | 0.2 % | |
 | Windows 3.xx | 43 | 0 % | |
| BSD | 15 | 0 % | ||
 | FreeBSD | 15 | 0 % | |
| Linux | 15049 | 29.8 % | ||
 | Ubuntu | 2965 | 5.8 % | |
 | Suse | 91 | 0.1 % | |
 | Red Hat | 47 | 0 % | |
 | Mandriva (or Mandrake) | 35 | 0 % | |
 | Gentoo | 101 | 0.2 % | |
 | Fedora | 107 | 0.2 % | |
 | Debian | 17 | 0 % | |
 | Centos | 16 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 11670 | 23.1 % | |
| Macintosh | 4552 | 9 % | ||
 | Mac OS X | 4552 | 9 % | |
| Others | 4641 | 9.2 % | ||
 | Unknown | 4307 | 8.5 % | |
 | Unknown Unix system | 313 | 0.6 % | |
 | BeOS | 16 | 0 % | |
 | Symbian OS | 4 | 0 % | |
 | Sun Solaris | 1 | 0 % | |