https://docs.loomesoftware.com/integrate-server/installation/web-interface-prerequisites/index.html NET Framework 4.5 The Microsoft .Net Framework 4.5 must be installed. Windows Installer 4.5 As a minimum, Windows Installer 4.5 must be installed. Web Server IIS Role in Server Manager When the Loome Integrate Web Interface installer is executed, the installation package (MSI) will attempt to create a Loome Integrate web site. As such, an IIS service must already be enabled and configured correctly on the server before the installation begins. Hugo en-US