Impact Licensing – Service Update
Throughout today (Dec 2nd), our licensing service provider, Nalpeiron, experienced several outages caused by issues at their hosting provider, Azure. Nalpeiron has confirmed that full service has now been restored, they do not expect further disruption, and they are implementing additional safeguards to mitigate similar issues in the future.

Impact Enterprise – IIS System Required Windows Roles and Features

Overview

This article describes the Windows Server and IIS feature requirements for hosting Impact Enterprise using IIS at central, a site or hub. 


These requirements are intended for administrators and customer IT teams preparing a server to host Impact Enterprise via IIS, rather than Windows Services–only deployments.

Applies To

  • Product: Impact Enterprise
  • Deployment type: Central site hosting using IIS
  • Audience: Customer IT / System Administrators
  • Operating System: Windows Server 2016 or later

Purpose of These Requirements

Impact Enterprise relies on IIS-hosted services to:

  • Expose replication endpoints within the corporate network
  • Handle secure HTTP/HTTPS communication between sites
  • Support legacy and modern .NET-based components required by Enterprise services

All listed Windows features must be installed and enabled for a supported and stable deployment.

Windows Server Role Requirement

  • Web Server (IIS)

Required IIS Features

Web Server Core

  • Web Server
  • Common HTTP Features
    • Default Document
    • Directory Browsing
    • HTTP Errors
    • Static Content

Health and Diagnostics

  • HTTP Logging
  • Tracing

Performance

  • Static Content Compression

Security

  • Request Filtering

Application Development

  • .NET Extensibility 3.5
  • .NET Extensibility 4.6+
  • ASP.NET 3.5
  • ASP.NET 4.8
  • CGI
  • ISAPI Extensions
  • ISAPI Filters

Management Tools

  • IIS Management Console
  • IIS 6 Management Compatibility
    • IIS 6 Metabase Compatibility
    • IIS 6 Management Console
    • IIS 6 Scripting Tools
    • IIS 6 WMI Compatibility
  • IIS Management Scripts and Tools

.NET Framework Requirements

  • .NET Framework 4.8 Advanced Services
  • WCF Services
    • HTTP Activation

Installation Notes

  • These features can be installed using Server Manager or PowerShell.
  • Feature names may appear differently depending on Windows Server version, but the functional components must all be present.
Info: A PowerShell pre-check script is provided alongside this article to validate IIS and .NET feature readiness before installing Impact Enterprise.

What This Article Does Not Cover

  • Impact Enterprise installation steps
  • Database configuration
  • Firewall configuration

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