According to ZDNet, the Top 10 Most Downloaded Programs in 2006 consist of Antispyware, Media players, Peer To Peer software and one organizer application. This clearly show that security becomes a day to day concern of computer users. So this is the top 10 .

1. Spyware Doctor 4
This popular and fast tool can remove spyware, adware, Trojan horses, and keyloggers from your computer. It is free to try, but you have to pay $29.95 for the full version

2. Webroot Spy Sweeper
This is another popular Anti Spyware application . The limitation of free version is that the spyware removal is disabled. Pay $29.95 for a full version

3. Limewire
This a P2P file-sharing software for all types of files. The best part of this software is, it is free. But, I am always frustrated when downloading something, because what I get is always a corrupted or blank files.

4. ICQ
Communicate directly using the latest version of this popular chat client.
This popular chat client allows you to communicate with your friends via Internet. But I prefer to use Yahoo Instant Messenger because I don’t have to create another account, just using the Yahoo account. With the new version of Yahoo Messenger, you can chat with MSN Messenger users too!

5. Morpheus
Search multiple P2P networks including BitTorrent to download MP3s, videos, and games. This is another P2P file-sharing client. The ability to search multiple P2P networks including the Neo Network, Gnutella and BitTorrent is the advantage of this client. But I prefer using uTorrent as my bittorrent client.

6. Spybot - Search & Destroy
This program can search your hard disk and Registry for threats to your security and privacy. According to editors’ review on Download.com, this program is good to protect you from Spyware, but it has too many bugs.

7. Winzip 11
WinZip is the original and most popular of all Windows ZIP file utilities. But now I am using WinRar. Besides you can also try an open source ZIP program, 7Zip.

8. Lexa Organizer
Lexa Organizer is an effective task manager which can help you to organize your personal life and work. This software is very suitable for those, who have unorganized life. My life is already well-organized. I don’t need this.

9. Real Player 10
You need this program to play real media files. But as an alternative, you can use Windows Media Player Classic from K-Lite codec pack. The player can play almost everything!

10. Clean Center
CleanCenter will find and clean junk files on your pc, so that your pc can run faster. It comes with a full working free 15 day trial. The full version will cost you $19.95