| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 342596 | 59.5 % | ||
 | Windows XP | 6043 | 1 % |  |
 | Windows Vista | 27255 | 4.7 % | |
 | Windows (unknown version) | 64 | 0 % | |
 | Windows NT | 180315 | 31.3 % | |
 | Windows ME | 5 | 0 % | |
 | Windows Vista (LongHorn) | 2584 | 0.4 % | |
 | Windows Mobile | 29 | 0 % | |
 | Windows 98 | 43 | 0 % | |
 | Windows 95 | 32 | 0 % | |
 | Windows 2008 | 126038 | 21.9 % | |
 | Windows 2003 | 142 | 0 % | |
 | Windows 2000 | 19 | 0 % | |
 | Windows 3.xx | 27 | 0 % | |
| BSD | 217 | 0 % | ||
 | OpenBSD | 33 | 0 % | |
 | NetBSD | 3 | 0 % | |
 | FreeBSD | 181 | 0 % | |
| Linux | 124563 | 21.6 % | ||
 | Ubuntu | 6539 | 1.1 % | |
 | Red Hat | 12 | 0 % | |
 | Gentoo | 1 | 0 % | |
 | Debian | 22 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 117989 | 20.5 % | |
| Macintosh | 77828 | 13.5 % | ||
 | Mac OS X | 77815 | 13.5 % | |
 | Mac OS | 13 | 0 % | |
| Others | 29716 | 5.1 % | ||
 | Unknown | 29224 | 5 % | |
 | Unknown Unix system | 474 | 0 % | |
 | Sun Solaris | 12 | 0 % | |
 | RISC OS | 3 | 0 % | |
 | OSF Unix | 1 | 0 % | |
 | Irix | 1 | 0 % | |
 | AmigaOS | 1 | 0 % | |