| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 2601534 | 61.2 % | ||
 | Windows XP | 1450215 | 34.1 % |  |
 | Windows Vista | 64 | 0 % | |
 | Windows (unknown version) | 1025 | 0 % | |
 | Windows NT | 257 | 0 % | |
 | Windows ME | 815 | 0 % | |
 | Windows Vista (LongHorn) | 590151 | 13.8 % | |
 | Windows Mobile | 1221 | 0 % | |
 | Windows 98 | 2039 | 0 % | |
 | Windows 95 | 265 | 0 % | |
 | Windows 2008 | 501468 | 11.8 % | |
 | Windows 2003 | 35111 | 0.8 % | |
 | Windows 2000 | 18552 | 0.4 % | |
 | Windows 3.xx | 351 | 0 % | |
| BSD | 7975 | 0.1 % | ||
 | OpenBSD | 1112 | 0 % | |
 | NetBSD | 458 | 0 % | |
 | FreeBSD | 6405 | 0.1 % | |
| Linux | 1183881 | 27.8 % | ||
 | Ubuntu | 536572 | 12.6 % | |
 | Suse | 41781 | 0.9 % | |
 | Red Hat | 6113 | 0.1 % | |
 | Mandriva (or Mandrake) | 24769 | 0.5 % | |
 | Gentoo | 36127 | 0.8 % | |
 | Fedora | 59625 | 1.4 % | |
 | Debian | 71602 | 1.6 % | |
 | Centos | 3578 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 403714 | 9.5 % | |
| Macintosh | 404593 | 9.5 % | ||
 | Mac OS X | 404549 | 9.5 % | |
 | Mac OS | 44 | 0 % | |
| Others | 51047 | 1.2 % | ||
 | Unknown | 46001 | 1 % | |
 | Sun Solaris | 2070 | 0 % | |
 | Symbian OS | 1698 | 0 % | |
 | Unknown Unix system | 495 | 0 % | |
 | CPM | 280 | 0 % | |
 | Sony PlayStation Portable | 252 | 0 % | |
 | Nintendo Wii | 114 | 0 % | |
 | BeOS | 73 | 0 % | |
 | OS/2 | 64 | 0 % | |