Electronic User Agreement
End-user licensing agreements were also criticized for containing conditions that impose incriminating obligations on consumers. For example, Clickwrapped, a service that evaluates consumer companies based on respect for users` rights, indicates that they increasingly contain a term that prevents a user from suing the company.  In addition, in ProCD v. Zeidenberg, the license was declared enforceable because it was necessary for the customer to accept the terms of the agreement by clicking a “I agree” button to install the software. However, in Specht v. Netscape Communications Corp., the licensee was able to download and install the software without having to review the terms of the agreement and approve it positively, so that the license is considered unenforceable. Many form contracts are only included in digital form and are presented to a user only as a click-through that the user must “accept.” Since the user may only see the agreement after the purchase of the software, these documents may be liability contracts. A free software license gives users of this software the right to use, modify and redistribute creative works and software that are both copyrighted and generally not licensed with proprietary software. These licenses usually contain a disclaimer, but this feature is not just for free software.  Copyleft licenses also contain a key add-on clause, which must be followed to copy or modify the software, requiring the user to provide source code to the factory and distribute its changes under the same license (or sometimes compatible); effectively to protect derivative works from the loss of original permissions used in proprietary programs.
A common criticism of end-user licensing contracts is that they are often far too long for users to spend time reading them carefully. In March 2012, the PayPal end-user license agreement was 36,275 words and in May 2011, the iTunes agreement was 56 pages long.  The sources of information that reported these results stated that the vast majority of users do not read the documents because of their length. Many companies have parodied this belief that users do not read end-user licensing agreements by adding unusual clauses, knowing that few users will ever read them. As an April joke, Gamestation added a clause stating that users who placed an order on April 1, 2010 agreed to give their souls irrevocably to the company, which was accepted by 7,500 users. Although there is a box to be contributed to exclude the “immortal soul” clause, few users have verified it, and Gamestation has concluded that 88% of its users have not read the agreement.  The PC Pitstop program contained a clause in its end-user license agreement that stipulated that anyone who read the clause and contacted the company would receive a financial reward, but it took four months and more than 3,000 software downloads before someone collected them.  During the installation of version 4 of the Advanced Reading Tool, the installer measured the time elapsed between the appearance and acceptance of end-user licensing agreements to calculate the average playback speed.