| Versiones | Solicitudes | Porcentaje | |
| WIN | 272849942 | 92.1 % | |
 | Windows XP | 229690027 | 77.6 % | 
|
 | Windows NT | 139078 | 0 % | 
|
 | Windows Me | 962153 | 0.3 % | 
|
 | Windows Codename Longhorn | 24785986 | 8.3 % | 
|
 | Windows CE | 13136 | 0 % | 
|
 | Windows 98 | 6506600 | 2.1 % | 
|
 | Windows 95 | 65622 | 0 % | 
|
 | Windows 2003 | 1661903 | 0.5 % | 
|
 | Windows 2000 | 9022323 | 3 % | 
|
 | Windows 3.xx | 3114 | 0 % | 
|
| MAC | 1339629 | 0.4 % | |
 | Mac OS X | 1312408 | 0.4 % | 
|
 | Mac OS | 27221 | 0 % | 
|
| Otros | 21782487 | 7.3 % | |
 | Desconocido | 16755501 | 5.6 % | 
|
 | Linux | 5006772 | 1.6 % | 
|
 | Sun Solaris | 9186 | 0 % | 
|
 | Symbian OS | 6161 | 0 % | 
|
 | GNU | 1592 | 0 % | 
|
 | CPM | 1455 | 0 % | 
|
 | Unknown Unix system | 796 | 0 % | 
|
 | FreeBSD | 577 | 0 % | 
|
 | OpenBSD | 345 | 0 % | 
|
 | OS/2 | 51 | 0 % | 
|
 | WebTV | 25 | 0 % | 
|
 | AmigaOS | 18 | 0 % | 
|
 | BeOS | 3 | 0 % | 
|
 | Irix | 2 | 0 % | 
|
 | HP Unix | 1 | 0 % | 
|
 | Dreamcast | 1 | 0 % | 
|
 | OSF Unix | 1 | 0 % | 
|
|