| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 381593 | 56.7 % | ||
 | Windows XP | 120949 | 17.9 % |  |
 | Windows Vista | 908 | 0.1 % | |
 | Windows (unknown version) | 25 | 0 % | |
 | Windows NT | 380 | 0 % | |
 | Windows ME | 50 | 0 % | |
 | Windows Vista (LongHorn) | 32296 | 4.8 % | |
 | Windows Mobile | 13 | 0 % | |
 | Windows 98 | 72 | 0 % | |
 | Windows 95 | 39 | 0 % | |
 | Windows 2008 | 223568 | 33.2 % | |
 | Windows 2003 | 2895 | 0.4 % | |
 | Windows 2000 | 384 | 0 % | |
 | Windows 3.xx | 14 | 0 % | |
| BSD | 376 | 0 % | ||
 | OpenBSD | 51 | 0 % | |
 | FreeBSD | 325 | 0 % | |
| Linux | 108708 | 16.1 % | ||
 | Ubuntu | 16279 | 2.4 % | |
 | Suse | 732 | 0.1 % | |
 | Red Hat | 310 | 0 % | |
 | Mandriva (or Mandrake) | 199 | 0 % | |
 | Gentoo | 397 | 0 % | |
 | Fedora | 936 | 0.1 % | |
 | Debian | 191 | 0 % | |
 | Centos | 205 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 89459 | 13.3 % | |
| Macintosh | 177448 | 26.3 % | ||
 | Mac OS X | 177448 | 26.3 % | |
| Others | 4163 | 0.6 % | ||
 | Unknown | 4104 | 0.6 % | |
 | Sun Solaris | 19 | 0 % | |
 | OS/2 | 13 | 0 % | |
 | BeOS | 13 | 0 % | |
 | Symbian OS | 9 | 0 % | |
 | Unknown Unix system | 5 | 0 % | |