Most works of authorship, such as books, magazines, records, photographs and artwork, are sold outright. In other words, they are sold directly to end users (readers, viewers, consumers, and the like) or to middlemen such as (bookstores, networks, websites, and so forth) who, in turn, sell the works to end users.
A common transaction works like this: Imagine that you want to buy a book. You walk into a bookstore, pay your money, and you are sold a copy of the book. You now own the copy of the book. You don't have to sign a license agreement and the book doesn't contain any type of "shrink-wrap" license.
Software copyright owners are also free to simply sell copies of their software. Such a sale would usually be through a download, CD, DVD, or other media containing copies of the software to end users.
Today, however, virtually all software is licensed to end users rather than sold outright like books. Instead of owning the copy of the software they "buy," end users merely acquire permission to use it. A written license agreement carefully defines and restricts the nature and extent of that permission.
Why is software "sold" through a license? Software owners believe that license agreements help them preserve their market share, obtain the maximum return on each transaction, and safeguard their intellectual property rights. All of this creates, at least in theory, greater profits.
Because the end user does not acquire ownership of a copy of the software, he or she has only those rights provided in the license agreement. The license agreement normally includes provisions that effectively take away most of the rights that a purchaser of a copy would have under the copyright law. Such licenses typically include one or more of these restrictions:
It is not difficult to understand how such license restrictions can help software developers protect their product and increase their profits. For example, licenses typically provide that without permission from the copyright owner, the purchaser of a copy of a computer program may not use the program on a network. Persons or companies that want to use software on a network usually must obtain a network/multi-user license from the copyright owner or, in the case of mass-marketed software intended to be used in networks, such licenses are already included in the package.
In short, creators and owners of software would be wise to "sell" their product through a licensing agreement with consumers, a method of sale that has become the industry standard.