| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 3059050 | 71.9 % | ||
 | Windows XP | 498498 | 11.7 % |  |
 | Windows NT | 2095036 | 49.2 % | |
 | Windows Me | 193 | 0 % | |
 | Windows Vista | 438918 | 10.3 % | |
 | Windows CE | 2190 | 0 % | |
 | Windows 98 | 1383 | 0 % | |
 | Windows 95 | 191 | 0 % | |
 | Windows 2003 | 6531 | 0.1 % | |
 | Windows 2000 | 16067 | 0.3 % | |
 | Windows 3.xx | 43 | 0 % | |
| BSD | 265 | 0 % | ||
 | OpenBSD | 177 | 0 % | |
 | GNU/kFreeBSD | 3 | 0 % | |
 | FreeBSD | 85 | 0 % | |
| Linux | 148144 | 3.4 % | ||
 | Ubuntu | 7040 | 0.1 % | |
 | Suse | 225 | 0 % | |
 | Red Hat | 114 | 0 % | |
 | Mandriva (or Mandrake) | 17 | 0 % | |
 | Fedora | 406 | 0 % | |
 | Debian | 116 | 0 % | |
 | Centos | 38 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 140188 | 3.2 % | |
| Macintosh | 695064 | 16.3 % | ||
 | Mac OS X | 695037 | 16.3 % | |
 | Mac OS | 27 | 0 % | |
| Others | 350129 | 8.2 % | ||
 | Unknown | 348097 | 8.1 % | |
 | Unknown Unix system | 786 | 0 % | |
 | Symbian OS | 663 | 0 % | |
 | Sun Solaris | 486 | 0 % | |
 | Sony PlayStation Portable | 82 | 0 % | |
 | OS/2 | 8 | 0 % | |
 | BeOS | 6 | 0 % | |
 | HP UX | 1 | 0 % | |