Qlik Web Connectors standalone package installation or launch error: .Net Framework 8.1

Alan_Slaughter — Mon, 24 Nov 2025 09:45:00 GMT

Cannot install or launch the Qlik Web Connector standalone package (January 2024 and higher versions) on Microsoft Windows 2016 and 2019 servers.

The installation or launch fails with:

QlikWebConnectors.exe - This application could not be started.

This application requires one of the following versions of the .NET Framework:
.NETFramework,Version=v4.8.1

Resolution

A Qlik Web Connector configuration file change is needed to force the use of .NET Framework 4.8 with the Qlik Web Connector standalone package.

Navigate to the Qlik Web Connector extraction folder; example: C:\QlikWebConnectorsJuly2025
Find and edit the following two files:
- QlikWebConnectors.exe.config
- QlikWebConnectorsSVc.exe.config

In each file, find and update the following line by changing v4.8.1 to v4.8:

<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1" />

<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8" />

Cause

The Qlik WebConnector standalone package requires Microsoft .NET Framework 4.8.1. See System requirements for Qlik Web Connectors.

However, Microsoft .NET Framework 4.8.1 is not supported on Windows 2016 and 2019 servers. For more information, refer to Compatible operating systems | learn.microsoft.com. Windows 2016 and 2019 servers support .NET Framework 4.8 or lower.

Environment

Qlik Web Connectors

article Qlik Web Connectors standalone package installation or launch error: .Net Framework 8.1 in Official Support Articles

Qlik Web Connectors standalone package installation or launch error: .Net Framework 8.1

Resolution

Cause

Environment