Executor is a software application that allows Motorola 68000-based classic Mac OS programs to be run on various x86-based operating systems.

Due to the GUI-oriented nature of classic Mac OS applications, Executor has its own GUI environment known as Browser.

It mimics the classic Mac OS desktop and the Finder application without having features such as the trash can or Control Panels.

Executor also lacks the ability to run components (such as extensions or control panels) that are highly integrated with classic Mac OS versions.

[7] For example, heise Magazine reported issues with installation of many programs, and running early versions of StarWriter and Adobe PageMill.