| Microsoft | Windows Explorer | 7 |
| Microsoft | Outlook Express | 49 |
| University Of Cambridge | Exim | 57 |
| Symantec | Norton Antivirus | 64 |
| Novell | Groupwise | 74 |
| Mandrakesoft | Mandrake Linux | 136 |
| Lbl | Tcpdump | 189 |
| Symantec | Pcanywhere | 18 |
| Ipswitch | Imail | 39 |
| Webmin | Webmin | 89 |
| Ncsa | Telnet | 3 |
| Sambar | Sambar Server | 18 |
| Ethereal Group | Ethereal | 109 |
| Opera Software | Opera Web Browser | 13 |
| Delegate | Delegate | 9 |
| Hylafax | Hylafax | 12 |
| David Harris | Pegasus Mail | 7 |
| Broadcom | Inoculateit | 13 |
| Fore | Powerhub Software | 1 |
| Arpanet | Perlshop | 1 |
| Microsoft | Zero Administration Kit | 1 |
| Gene6 | G6 Ftp Server | 5 |
| F5 | Tmos | 7 |
| Ubuntu | Ubuntu Linux | 3232 |
| Cisco | Pix Firewall | 17 |
| Trend Micro | Pc-cillin | 4 |
| Glftpd | Glftpd | 7 |
| Nullsoft | Winamp | 66 |
| Zope | Zope | 36 |
| Nortel | Contivity | 9 |
| Sun | Solstice Backup | 4 |
| Globalscape | Cuteftp | 7 |
| Oracle | Application Server | 205 |
| Trend Micro | Officescan | 35 |
| Htdig | Htdig | 6 |
| Zonelabs | Zonealarm | 32 |
| Citrix | Metaframe | 10 |
| Microsoft | Proxy Server | 7 |
| Qnx | Qnx | 3 |
| Craig Dansie | Dansie Shopping Cart | 4 |
| Panda | Panda Security | 3 |
| Cisco | Catos | 18 |
| Cisco | 7200 Router | 2 |
| Cisco | 7500 Router | 2 |
| Gnu | Emacs | 29 |
| Realnetworks | Realplayer | 172 |
| Id Software | Quake 3 Arena | 4 |
| Microsoft | Jet | 8 |
| Gnu | Glibc | 137 |
| Openldap | Openldap | 59 |
| Cvs | Cvs | 22 |
| Acme Labs | Thttpd | 17 |
| Alexander Siegel | Golddig | 2 |
| Alt-n | Mdaemon | 43 |
| Microsoft | Works | 60 |
| Mozilla | Bugzilla | 149 |
| Netwin | Dmail | 6 |
| Putty | Putty | 32 |
| Bea | Weblogic Server | 216 |
| Macromedia | Jrun | 38 |
| Panda | Panda Antivirus | 31 |
| Danware Data | Netop | 2 |
| Hp | Openview Network Node Manager | 81 |
| Broadcom | Etrust Intrusion Detection | 16 |
| Sawmill | Sawmill | 9 |
| Sun | Java System Web Server | 35 |
| Conectiva | Linux | 1694 |
| Mozilla | Mozilla | 112 |
| Alt-n | Worldclient | 7 |
| Trustix | Secure Linux | 76 |
| Apache | Tomcat | 148 |
| Sun | Solaris Answerbook2 | 6 |
| Gnu | Mailman | 46 |
| Luca Deri | Ntop | 6 |
| Xpdf | Xpdf | 137 |
| Francisco Burzi | Php-nuke | 119 |
| Lyris | List Manager | 8 |
| Gnu | Groff | 11 |
| Davide Libenzi | Xmail | 4 |
| Yabb | Yabb | 27 |
| Horde | Horde | 21 |
| Horde | Imp | 23 |
| Microsoft | Windows Media Player | 53 |
| Cisco | Catalyst 3500 Xl | 2 |
| Gnu | Cfengine | 14 |
| Daniel Stenberg | Curl | 94 |
| Anaconda Partners | Foundation Directory | 2 |
| Microsoft | Windows Me | 66 |
| Krzysztof Dabrowski | Cmd5checkpw | 2 |
| Cisco | Secure Access Control Server | 34 |
| Sun | Jdk | 719 |
| Dcscripts | Dcforum | 6 |
| Rob Flynn | Gaim | 28 |
| Argosoft | Ftp Server | 35 |
| Ibm | Lotus Domino | 88 |
| Microsoft | Windows Xp | 762 |
| Phorum | Phorum | 56 |
| Ibm | Tivoli Management Framework | 6 |
| Leif M. Wright | Ad.cgi | 4 |
| Igor Khasilev | Oops Proxy Server | 3 |
