| AA | Λειτουργικό σύστημα | # μηνυμάτων |
|---|---|---|
| 1 | Windows | 1762 |
| 2 | Linux | 251 |
| 3 | Undefined | 250 |
| 4 | SunOS | 143 |
| 5 | Windows NT 5.0 | 112 |
| 6 | Windows NT 5.1 | 32 |
| 7 | Win98 | 31 |
| 8 | Win95 | 14 |
| 9 | WinNT | 11 |
| 10 | Win32 | 7 |
| 11 | WinNT4.0 | 4 |
| 12 | OpenBSD | 3 |
| 13 | Win 9x 4.90 | 1 |
| 14 | FreeBSD | 1 |
| 15 | UNIX | 1 |
| Σύνολο | 2623 |