List of Useful Free Softwares on the Internet

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PDF reDirect
http://www.exp-systems.com/

PDFtoMusic Pro
http://store.recordare.com/pdftomusicpro.html

AVG (Anti Virus Grisoft)
http://free.grisoft.com/

Audacity (Multi-track Recording SW)
http://audacity.sourceforge.net/

YouTube Downloader (altervista.org)
http://youtubedownload.altervista.org/

Quicktime (with iTunes)
http://www.apple.com/quicktime/download/

Unlocker
Info: http://www.computerhope.com/issues/ch000714.htm
Download Website: http://ccollomb.free.fr/unlocker/

7-Zip
http://www.7-zip.org/
Supported formats:
Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
Unpacking only: ARJ, CAB, CHM, CPIO, DEB, DMG, HFS, ISO, LZH, LZMA, MSI, NSIS, RAR, RPM, UDF, WIM, XAR and Z.