| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 799639 | 60.5 % | ||
 | Windows XP | 18182 | 1.3 % |  |
 | Windows Vista | 74925 | 5.6 % | |
 | Windows (unknown version) | 342 | 0 % | |
 | Windows NT | 394461 | 29.8 % | |
 | Windows Vista (LongHorn) | 6961 | 0.5 % | |
 | Windows Mobile | 45 | 0 % | |
 | Windows 98 | 79 | 0 % | |
 | Windows 95 | 51 | 0 % | |
 | Windows 2008 | 304081 | 23 % | |
 | Windows 2003 | 261 | 0 % | |
 | Windows 2000 | 33 | 0 % | |
 | Windows 3.xx | 218 | 0 % | |
| BSD | 450 | 0 % | ||
 | OpenBSD | 57 | 0 % | |
 | NetBSD | 36 | 0 % | |
 | FreeBSD | 357 | 0 % | |
| Linux | 248739 | 18.8 % | ||
 | Ubuntu | 13566 | 1 % | |
 | Red Hat | 26 | 0 % | |
 | Mandriva (or Mandrake) | 10 | 0 % | |
 | Gentoo | 6 | 0 % | |
 | Fedora | 53 | 0 % | |
 | Debian | 48 | 0 % | |
 | Centos | 1 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 235029 | 17.7 % | |
| Macintosh | 238172 | 18 % | ||
 | Mac OS X | 238164 | 18 % | |
 | Mac OS | 8 | 0 % | |
| Others | 33794 | 2.5 % | ||
 | Unknown | 31532 | 2.3 % | |
 | Unknown Unix system | 2175 | 0.1 % | |
 | Sun Solaris | 57 | 0 % | |
 | RISC OS | 16 | 0 % | |
 | AmigaOS | 6 | 0 % | |
 | Irix | 5 | 0 % | |
 | Dreamcast | 2 | 0 % | |
 | BeOS | 1 | 0 % | |