This excerpt taken from the VRSN 10-K filed Jul 12, 2007.
2.2. The receiving partys duties under this section (2) shall expire five (5) years after the information is received or earlier, upon written agreement of the Parties.
3. Restrictions On Use
3.1. The receiving party agrees that it will use any Confidential Information received under this Confidentiality Agreement solely for the purpose of providing domain name registration services as a registrar and for no other purposes whatsoever.
3.2. No commercial use rights or any licenses under any patent, patent application, copyright, trademark, know-how, trade secret, or any other VNDS proprietary rights are granted by the disclosing party to the receiving party by this Confidentiality Agreement, or by any disclosure of any Confidential Information to the receiving party under this Confidentiality Agreement.
3.3. The receiving party agrees not to prepare any derivative works based on the Confidential Information.
3.4. The receiving party agrees that any Confidential Information which is in the form of computer software, data and/or databases shall be used on a computer system(s) that is owned or controlled by the receiving party.