When performing a fresh installation of Enterprise Console 5.x, the following message may be displayed:
A new instance cannot be created because Windows Installer 4.5 is not installed
First seen in
Enterprise Console 5.0.0
The computer you are attempting to install Enterprise Console 5.x on does not have Windows Installer 4.5 installed. This version of Windows Installer is required to install the version of Microsoft SQL Express that is included with Enterprise Console 5.x.
What To Do
Please install Windows Installer 4.5, this will request a reboot. Once rebooted please re-run the installation.
You can either install Windows Installer 4.5 from the "pre-reqs" folder shipped with the installer. E.g "C:\SEC_50\ServerInstaller\pre-reqs\Windows Installer 4.5\[PlatformRequired]\" or download it from Microsoft.