EULA
End User License Agreement: the contract you click "I agree" on without reading, which says you didn't buy the software, you were merely allowed to use it.
The construct underpins proprietary software. Because the user only holds a license, the vendor can forbid decompiling, resale and publishing benchmarks. First came "shrinkwrap" agreements, deemed accepted when you tore the plastic; a US court upheld one in ProCD v. Zeidenberg in 1996. Then came "clickwrap" inside installers.
That nobody reads them is documented. In 2005 PC Pitstop buried an offer of $1,000 for anyone who got in touch at the bottom of its agreement, and it took months before someone did. In the EU, the Court of Justice ruled in UsedSoft v. Oracle in 2012 that a downloaded license may be resold, whatever the agreement claims.