An End User License Agreement (EULA) is a legal contract between a software application author or publisher and the user of that application. The EULA, often referred to as the "software license," is similar to a rental agreement; the user agrees to pay for the privilege of using the software, and promises the software author or publisher to comply with all restrictions stated in the EULA. The user is asked to indicate they that "accept" the terms of the EULA by opening the shrink wrap on the application package, breaking the seal on the CD case, sending a card back to the software publisher, installing the application, executing a downloadable file, or by simply using the application. The user can refuse to enter into the agreement by returning the software product for a refund or clicking "I do not accept" when prompted to accept the EULA during an install.