CNET.com has put together a list of the Top 10 Downloads of All Time. Check out the list below.
1

ICQ is an instant messaging computer program, owned by Time Warner's AOL subsidiary
***
2

Winamp is a proprietary media player written by Nullsoft, now a subsidiary of Time Warner
***
3

Napster was a file sharing service that paved the way for decentralized P2P file-sharing programs such as Kazaa, Limewire, iMesh, computer program Morpheus , and BearShare, which are now used for many of the same reasons and can download music, pictures,
***
4

Mozilla Firefox is a graphical web browser developed by the Mozilla Corporation, and a large community of external contributors
***
5

WinZip is a file archiver and compressor for Microsoft Windows, developed by WinZip Computing
***
6
7

Ad-Aware is an anti-spyware program developed by Lavasoft that detects and removes software on a user's computer that is determined to be spyware or adware
***
8

Skype is a peer-to-peer Internet telephony network founded by the entrepreneurs Niklas Zennstrom and Janus Friis, also founders of the file sharing application Kazaa and the peer-to-peer television application Joost
***
9

RealPlayer, briefly known also as RealOne Player, is a cross-platform media player by RealNetworks that plays a number of multimedia formats including MP3, MPEG-4, QuickTime, Windows Media and multiple versions of proprietary RealAudio and RealVideo forma
***
10

Adobe Acrobat is a family of application software by Adobe Systems
***