| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 35627755 | 78.4 % | ||
 | Windows XP | 11609377 | 25.5 % |  |
 | Windows Vista | 29587 | 0 % | |
 | Windows (unknown version) | 11019 | 0 % | |
 | Windows NT | 7552 | 0 % | |
 | Windows ME | 663 | 0 % | |
 | Windows Vista (LongHorn) | 5525569 | 12.1 % | |
 | Windows Mobile | 1069 | 0 % | |
 | Windows 98 | 3252 | 0 % | |
 | Windows 95 | 1220 | 0 % | |
 | Windows 2008 | 18233240 | 40.1 % | |
 | Windows 2003 | 126697 | 0.2 % | |
 | Windows 2000 | 78491 | 0.1 % | |
 | Windows 3.xx | 19 | 0 % | |
| BSD | 7841 | 0 % | ||
 | OpenBSD | 285 | 0 % | |
 | NetBSD | 217 | 0 % | |
 | FreeBSD | 7339 | 0 % | |
| Linux | 4406752 | 9.6 % | ||
 | Ubuntu | 1087341 | 2.3 % | |
 | Suse | 51746 | 0.1 % | |
 | Red Hat | 17438 | 0 % | |
 | Mandriva (or Mandrake) | 25653 | 0 % | |
 | Gentoo | 5848 | 0 % | |
 | Fedora | 47878 | 0.1 % | |
 | Debian | 44451 | 0 % | |
 | Centos | 19623 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 3106774 | 6.8 % | |
| Macintosh | 5122844 | 11.2 % | ||
 | Mac OS X | 5122744 | 11.2 % | |
 | Mac OS | 100 | 0 % | |
| Others | 268728 | 0.5 % | ||
 | Unknown | 256702 | 0.5 % | |
 | Sun Solaris | 6429 | 0 % | |
 | Symbian OS | 2619 | 0 % | |
 | Unknown Unix system | 1917 | 0 % | |
 | OS/2 | 845 | 0 % | |
 | CPM | 124 | 0 % | |
 | Nintendo Wii | 75 | 0 % | |
 | Sony PlayStation Portable | 9 | 0 % | |
 | RISC OS | 7 | 0 % | |
 | OSF Unix | 1 | 0 % | |