| Versions | Hits | Percent | ||
|---|---|---|---|---|
| Windows | 14872065 | 48.8 % | ||
 | Windows XP | 10679428 | 35 % |  |
 | Windows NT | 626511 | 2 % | |
 | Windows ME | 53444 | 0.1 % | |
 | Windows Vista (LongHorn) | 11526 | 0 % | |
 | Windows Mobile | 1871 | 0 % | |
 | Windows 98 | 1765332 | 5.7 % | |
 | Windows 95 | 17089 | 0 % | |
 | Windows 2003 | 189656 | 0.6 % | |
 | Windows 2000 | 1526997 | 5 % | |
 | Windows 3.xx | 211 | 0 % | |
| BSD | 2 | 0 % | ||
 | BSDi | 2 | 0 % | |
| Linux | 2675823 | 8.7 % | ||
 | GNU Linux (Unknown or unspecified distribution) | 2675823 | 8.7 % | |
| Macintosh | 665708 | 2.1 % | ||
 | Mac OS X | 641458 | 2.1 % | |
 | Mac OS | 24250 | 0 % | |
| Others | 12250634 | 40.2 % | ||
 | Unknown | 12105716 | 39.7 % | |
 | Sun Solaris | 92819 | 0.3 % | |
 | FreeBSD | 31152 | 0.1 % | |
 | Irix | 4690 | 0 % | |
 | hp-ux | 3652 | 0 % | |
 | Unknown Unix system | 3330 | 0 % | |
 | NetBSD | 2107 | 0 % | |
 | OpenBSD | 2023 | 0 % | |
 | OSF Unix | 1590 | 0 % | |
 | Aix | 944 | 0 % | |
 | Symbian OS | 640 | 0 % | |
 | OS/2 | 613 | 0 % | |
 | GNU Hurd | 533 | 0 % | |
 | AmigaOS | 289 | 0 % | |
 | WebTV | 275 | 0 % | |
 | BeOS | 96 | 0 % | |
 | CP/M | 86 | 0 % | |
 | VMS | 56 | 0 % | |
 | RISC OS | 21 | 0 % | |
 | Dreamcast | 1 | 0 % | |
 | Atari | 1 | 0 % | |