Having Kazaa is 100% legal
On December 19, 2003, the Dutch Supreme Court confirmed that Kazaa peer-to-peer technology and its distribution is legal.
On April 25, 2003, Judge Stephen J. Wilson of the United States District Court for the Central District of California ruled in favor of Streamcast Networks, Inc. and Grokster, Limited, distributors of peer-to-peer software which functions similarly to Kazaa, in a summary judgment concluding that such peer-to-peer software and its distribution is legal.
Use of the software in the manner authorized by Kazaa’s End User License Agreement is legal in most jurisdictions. Use of the software to download or share copyrighted works without the permission of the copyright owner may be illegal in many jurisdictions. You should therefore be certain that your use of Kazaa complies with the End User License Agreement and you are not authorized to use Kazaa other than in compliance with the Kazaa End User License Agreement. For further details on complying with the Kazaa End User License Agreement, please see the “Share responsibly” section below.
http://www.kazaa.com/us/help/new_100percentlegal.htm
PS.
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