# Server Specific Extensions

- Apache
  - Introduction
  - Installing/Configuring
  - Predefined Constants
  - Apache Functions
- FastCGI Process Manager
  - Introduction
  - Installing/Configuring
  - FPM Functions
- IIS — IIS Administration
  - Introduction
  - Installing/Configuring
  - Predefined Constants
  - IIS Functions
- NSAPI
  - Introduction
  - Installing/Configuring
  - Predefined Constants
  - NSAPI Functions