| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 27217 | 50.2 % | ||
 | Windows XP | 10489 | 19.3 % |  |
 | Windows Vista | 54 | 0 % | |
 | Windows (unknown version) | 85 | 0.1 % | |
 | Windows NT | 90 | 0.1 % | |
 | Windows ME | 9 | 0 % | |
 | Windows Vista (LongHorn) | 2872 | 5.3 % | |
 | Windows 98 | 20 | 0 % | |
 | Windows 95 | 3 | 0 % | |
 | Windows 2008 | 13353 | 24.6 % | |
 | Windows 2003 | 158 | 0.2 % | |
 | Windows 2000 | 81 | 0.1 % | |
 | Windows 3.xx | 3 | 0 % | |
| BSD | 16 | 0 % | ||
 | FreeBSD | 16 | 0 % | |
| Linux | 16279 | 30 % | ||
 | Ubuntu | 2717 | 5 % | |
 | Suse | 105 | 0.1 % | |
 | Red Hat | 52 | 0 % | |
 | Mandriva (or Mandrake) | 34 | 0 % | |
 | Gentoo | 271 | 0.5 % | |
 | Fedora | 151 | 0.2 % | |
 | Debian | 36 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 12913 | 23.8 % | |
| Macintosh | 5563 | 10.2 % | ||
 | Mac OS X | 5563 | 10.2 % | |
| Others | 5049 | 9.3 % | ||
 | Unknown | 4676 | 8.6 % | |
 | Unknown Unix system | 348 | 0.6 % | |
 | OS/2 | 18 | 0 % | |
 | Symbian OS | 6 | 0 % | |
 | Sun Solaris | 1 | 0 % | |