| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 33445 | 53.2 % | ||
 | Windows XP | 18025 | 28.6 % |  |
 | Windows (unknown version) | 4 | 0 % | |
 | Windows NT | 168 | 0.2 % | |
 | Windows ME | 12 | 0 % | |
 | Windows Vista (LongHorn) | 5497 | 8.7 % | |
 | Windows Mobile | 2 | 0 % | |
 | Windows 98 | 55 | 0 % | |
 | Windows 95 | 3 | 0 % | |
 | Windows 2008 | 9064 | 14.4 % | |
 | Windows 2003 | 303 | 0.4 % | |
 | Windows 2000 | 311 | 0.4 % | |
 | Windows 3.xx | 1 | 0 % | |
| BSD | 18 | 0 % | ||
 | FreeBSD | 18 | 0 % | |
| Linux | 19917 | 31.7 % | ||
 | Ubuntu | 7750 | 12.3 % | |
 | Suse | 593 | 0.9 % | |
 | Red Hat | 35 | 0 % | |
 | Mandriva (or Mandrake) | 141 | 0.2 % | |
 | Gentoo | 208 | 0.3 % | |
 | Fedora | 710 | 1.1 % | |
 | Debian | 355 | 0.5 % | |
 | Centos | 2 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 10123 | 16.1 % | |
| Macintosh | 5076 | 8 % | ||
 | Mac OS X | 5076 | 8 % | |
| Others | 4372 | 6.9 % | ||
 | Unknown | 4244 | 6.7 % | |
 | Unknown Unix system | 111 | 0.1 % | |
 | Sun Solaris | 17 | 0 % | |