JakubMisek AGLOA Thank you for the question. The installation of PEAR is as described on the PEAR site: https://pear.php.net/manual/en/installation.getting.php . The Visual Studio 2022 project uses either your existing PHP installation or (if you don't have any) it installs standard PHP on a first project run into C:\Program Files (x86)\IIS Express\PHP (more at https://docs.devsense.com/en/vs/installation/install-php).