IIS + PHP FastCGI Auto-Deploy

A PowerShell script to automate the complete setup of IIS with PHP support via FastCGI on Windows 11 / Server.
Perfect for quickly deploying a PHP-based webmail (like Roundcube) or any PHP website with a custom domain.

Features

• ✅ Automatic IIS installation – enables required Windows features (IIS-WebServerRole, IIS-CGI)
• ✅ Smart PHP download – detects the correct compiler version (vs16/vs17) based on PHP version
• ✅ Visual C++ Redistributable check – installs the latest VC++ 2015-2022 x64 if missing
• ✅ Idempotent – safe to run multiple times; skips already completed steps
• ✅ FastCGI configuration – registers PHP as a FastCGI application and adds the *.php handler
• ✅ IIS application pool & website creation – with customizable name, host header, port, and physical path
• ✅ Folder permissions – automatically grants read/execute access to IUSR
• ✅ Test page – creates a simple phpinfo() file to verify the setup
• ✅ Works with PowerShell 7.5+ – uses Windows PowerShell compatibility for IIS cmdlets

Prerequisites

• Windows 11 / Windows Server 2019 or later
• Administrator privileges
• Internet connection (to download PHP and VC++ Redistributable)

Usage

1. Clone or download this repository.

2. Open PowerShell 7.5+ as Administrator.

3. Run the script:

   .\Setup-IIS-PHP.ps1