| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 3914218 | 91.5 % | ||
 | Windows XP | 2743986 | 64.1 % |  |
 | Windows NT | 3599 | 0 % | |
 | Windows Me | 4549 | 0.1 % | |
 | Windows Vista | 1019007 | 23.8 % | |
 | Windows CE | 437 | 0 % | |
 | Windows 98 | 24871 | 0.5 % | |
 | Windows 95 | 173 | 0 % | |
 | Windows 2003 | 57694 | 1.3 % | |
 | Windows 2000 | 58633 | 1.3 % | |
 | Windows 3.xx | 1269 | 0 % | |
| BSD | 217 | 0 % | ||
 | FreeBSD | 217 | 0 % | |
| Linux | 34268 | 0.8 % | ||
 | Ubuntu | 20541 | 0.4 % | |
 | Suse | 1142 | 0 % | |
 | Red Hat | 473 | 0 % | |
 | Mandriva (or Mandrake) | 604 | 0 % | |
 | Fedora | 954 | 0 % | |
 | Debian | 1370 | 0 % | |
 | Centos | 23 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 9161 | 0.2 % | |
| Macintosh | 205205 | 4.7 % | ||
 | Mac OS X | 204839 | 4.7 % | |
 | Mac OS | 366 | 0 % | |
| Others | 121235 | 2.8 % | ||
 | Unknown | 120159 | 2.8 % | |
 | Symbian OS | 819 | 0 % | |
 | Sun Solaris | 226 | 0 % | |
 | WebTV | 26 | 0 % | |
 | Unknown Unix system | 4 | 0 % | |
 | Sony PlayStation Portable | 1 | 0 % | |