PADS4 installation prerequisites - PADS4 Platform

During the installation process, PADS4 will install the following prerequisites:

Included in PADS4 Installer

All the prerequisites will be installed/updated by the PADS4 Foundation installer. Do not pre-install these components beforehand on a server or workstation for white listing or other project related matters, this can disrupt the functional operation of the PADS4 Foundation product.

Package	Description
PADS4 Reverse Proxy	YARP‑based reverse proxy load balancer with better performance than NGinx
PADS4 Message Broker	Default messaging system; it handles internal communication between PADS4 microservices
PADS4 Package Manager	Core tool for installing, updating, or removing PADS4; uninstalling it separately prevents PADS4 removal.
Microsoft ASP.NET 10	.NET framework for PADS4 middleware
Microsoft .NET Runtime 10	.NET framework for PADS4 middleware
Microsoft Edge WebView2 Runtime	Web element rendering engine
Microsoft Visual C++ 2015-2022 Redistributable (x64 & x84) - 14.32.31332	Runtime components for C++ apps
Dokan 1.5.1.1000 bundle	Virtual drive library for Content Library
NGinx Reverse Proxy	High‑performance load balancer used by PADS4
Microsoft ASP.NET 8 (deprecated since 2026.1)	.NET framework for PADS4 middleware
Microsoft .NET Runtime 8 (deprecated since 2026.1)	.NET framework for PADS4 middleware
Microsoft .NET Runtime 6 (deprecated since 2025.1)	Legacy .NET framework for middleware
Microsoft ASP.NET 6 (deprecated since 2025.1)	Legacy .NET framework for middleware
Erlang 24.0 (deprecated from 2022.3)	Concurrency and fault tolerance library.
RabbitMQ Server 3.9.1 (deprecated from 2022.3)	Legacy messaging broker

Downloaded During Installation

These may be fetched automatically if missing on older systems

Package	Description
Microsoft .NET Framework 4.7.2	Common framework; downloaded if absent
Microsoft .NET Framework 4.6.2	Common framework; downloaded if absent

Optional requirements

These depend on your configuration and modules.

Package	Description
IIS	Required for PADS4 Digital Signage CMS 1.0 & PADS4 Workspace,
SQL Server	Default is SQLite (no install needed); use SQL for PADS4 FIDS and PADS4 CMS 1.0 if preferred
Microsoft Powerpoint	Needed on PADS4 Server for converting PPT to HTML5 Viewer format

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