| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 6333085 | 64.2 % | ||
 | Windows XP | 475195 | 4.8 % |  |
 | Windows NT | 5345807 | 54.2 % | |
 | Windows Me | 95 | 0 % | |
 | Windows Vista | 500938 | 5 % | |
 | Windows CE | 4480 | 0 % | |
 | Windows 98 | 744 | 0 % | |
 | Windows 95 | 22 | 0 % | |
 | Windows 2003 | 4178 | 0 % | |
 | Windows 2000 | 1620 | 0 % | |
 | Windows 3.xx | 6 | 0 % | |
| BSD | 43 | 0 % | ||
 | OpenBSD | 6 | 0 % | |
 | FreeBSD | 37 | 0 % | |
| Linux | 647969 | 6.5 % | ||
 | Ubuntu | 9188 | 0 % | |
 | Suse | 36 | 0 % | |
 | Red Hat | 141 | 0 % | |
 | Mandriva (or Mandrake) | 9 | 0 % | |
 | Fedora | 49 | 0 % | |
 | Debian | 110 | 0 % | |
 | Centos | 12 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 638424 | 6.4 % | |
| Macintosh | 2515405 | 25.5 % | ||
 | Mac OS X | 2515391 | 25.5 % | |
 | Mac OS | 14 | 0 % | |
| Others | 355072 | 3.6 % | ||
 | Unknown | 342165 | 3.4 % | |
 | Unknown Unix system | 11491 | 0.1 % | |
 | Symbian OS | 1032 | 0 % | |
 | Sun Solaris | 334 | 0 % | |
 | Sony PlayStation Portable | 30 | 0 % | |
 | WebTV | 11 | 0 % | |
 | OS/2 | 5 | 0 % | |
 | AmigaOS | 2 | 0 % | |
 | BeOS | 1 | 0 % | |
 | HP UX | 1 | 0 % | |