| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 4288642 | 65.7 % | ||
 | Windows XP | 379642 | 5.8 % |  |
 | Microsoft XBOX | 1 | 0 % | |
 | Windows NT | 3457097 | 53 % | |
 | Windows Me | 139 | 0 % | |
 | Windows Vista | 437642 | 6.7 % | |
 | Windows CE | 2852 | 0 % | |
 | Windows 98 | 606 | 0 % | |
 | Windows 95 | 33 | 0 % | |
 | Windows 2003 | 3539 | 0 % | |
 | Windows 2000 | 7088 | 0.1 % | |
 | Windows 3.xx | 3 | 0 % | |
| BSD | 171 | 0 % | ||
 | OpenBSD | 153 | 0 % | |
 | NetBSD | 2 | 0 % | |
 | FreeBSD | 16 | 0 % | |
| Linux | 356905 | 5.4 % | ||
 | Ubuntu | 9754 | 0.1 % | |
 | Suse | 526 | 0 % | |
 | Red Hat | 27 | 0 % | |
 | Mandriva (or Mandrake) | 11 | 0 % | |
 | Fedora | 383 | 0 % | |
 | Debian | 52 | 0 % | |
 | Centos | 23 | 0 % | |
 | GNU Linux (Unknown or unspecified distribution) | 346129 | 5.3 % | |
| Macintosh | 1628250 | 24.9 % | ||
 | Mac OS X | 1628227 | 24.9 % | |
 | Mac OS | 23 | 0 % | |
| Others | 245092 | 3.7 % | ||
 | Unknown | 241131 | 3.6 % | |
 | Unknown Unix system | 2970 | 0 % | |
 | Sun Solaris | 619 | 0 % | |
 | Symbian OS | 308 | 0 % | |
 | Sony PlayStation Portable | 56 | 0 % | |
 | RISC OS | 7 | 0 % | |
 | Aix | 1 | 0 % | |