https://en.wikipedia.org/wiki/San_Francisco_Canyon_Company https://www.theregister.com/1998/10/29/microsoft_paid_apple_...
"the [QuickTime] patent dispute was resolved with cross-licence and significant payment to Apple." The payment was $150 million."
"Intel gave this code to Microsoft as part of a joint development program called Display Control Interface."
"Canyon admitted that it had copied to Intel code developed for and assigned to Apple. In September 1994, Apple's software was distributed by Microsoft in its developer kits, and in Microsoft's Video for Windows version 1.1d."