The ospp.vbs script doesn't work for Microsoft 365 Apps or subscription versions of Project and Visio. If you installed the 32-bit version of Office on a 64-bit operating system, go to the Program Files (x86)\Microsoft Office\Office16 folder.
The ospp.vbs script is located in the Program Files\Microsoft Office\Office16 folder. The Office Software Protection Platform script (ospp.vbs) enables you to configure volume licensed versions of Office products, including Project and Visio. Activate volume licensed versions of Office by using Active Directory.