SPSS: PROCESS macro installation for SPSS
Download the most current version of PROCESS macro (copyright Andrew F. Hayes):
https://www.processmacro.org/download.html
Now found here: https://haskayne.ucalgary.ca/CCRAM/resource-hub
The download is a .zip file archive which first needs to be extracted.
One of the extracted files will be process.spd .
For example, for version 4.3, here is where that file is located, when unzipped:
{extracted-root-path}\PROCESS v4.3 for SPSS\Custom dialog builder file (v4.2)\process.spd
From within SPSS, use the [Extensions / Utilities / Install Custom Dialog] menu and browse to the extracted process.spd file.
Once that has been done, one should then see PROCESS has been added to the SPSS menus, under [Analyze / Regression].
Important Note: This is not a supported feature of SPSS, so there is no direct support for its installation or functionality.