Extract the SheepShaver.zip and replace the SheepShaver.exe inside of that folder with the one downloaded in Step 1. Inside this zip file there is a SheepShaver folder, extract the zip archive and open the folder. Here I extracted the folder and replaced the old SheepShaver.exe with the one we downloaded in step 1.
Under OS X or macOS, software written for the 'classic' Mac OS (i.e. Versions 6 through 9) can only be run through software that emulates Macintosh hardware from 1980s and 1990s. The most advanced of these emulator programs is SheepShaver. SheepShaver is no longer supported by its original author.
Here's how it should look if everything is correct. When clicking SheepShaver, it should show 'Cannot open ROM file'. Install GTK +2 Runtime as SheepShaver GUI requires it. Just follow the instructions and you will be good! 5. Download the. It will be in 7zip format, so you will need to install 7zip if you don't have it already.
Drop it in the SheepShaver folder.