How did I install `cwebp` to Windows 10?

Step 1

developers.google.com/speed/webp/download

Step 2

2024-02-10--20-07-59

Step 3

2024-02-10--20-15-51

Result

2024-02-10--20-16-51

Look useful, DF, but the Step 3 isn't clear.
What variable, what value have you highlighted?

The bin subfolder of the root installation folder.