When searching for "web platform installer 5.0 64-bit download," you might wonder: does the architecture matter? Absolutely.

Enter .

To run PHP on modern 64-bit Windows IIS, download the binaries directly from windows.php.net .

However, Microsoft officially retired Web Platform Installer on . The tool no longer functions, and its application feed has been permanently shut down.

Many corporate intranets, government systems, and older e-commerce sites were built on ASP.NET WebForms, Silverlight, or older PHP versions with IIS-specific extensions. Rebuilding these is costly, so admins keep them running on older servers. Web PI 5.0 is the easiest way to replicate that environment on a fresh machine.

He clicked the Start menu, found the Web Platform Installer 5.0 entry, and whispered to the empty room: “Don’t ever let Microsoft take you offline.”

Review and accept the Microsoft Software License Terms.

: For a similar automated experience, users often switch to community-driven solutions like Chocolatey or the Microsoft Package Manager (winget) .

Microsoft Web Platform Installer (Web PI) was officially retired on December 31, 2022

Run the installer and restart IIS Manager for the changes to take effect.