12.1 Windows Install not running.

Document ID : KB000045177
Last Modified Date : 14/02/2018
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Issue/Problem/Symptoms: 

Installing 12.1 Web Viewer for Windows and getting the error message: "LaunchAnywhere Error Could not find a valid Java virtual machine to load.  You may need to reinstall a supported Java virtual machine."

Environment:  

Windows 2008/2012 R2 Server

Cause: 

The install program looks for the JAVA_HOME variable and it must point to a valid JVM.

Resolution/Workaround:

1. Go to the Oracle link http://www.oracle.com/technetwork/java/javase/downloads/index.html and download the JRE, which will have the JVM.

2. Define the Environment Variable JAVA_HOME on the computer, pointing to the location of the JRE/JVM.

Additional Information:

This is a prerequisite for a 12.1 Web Viewer for Windows Server Install.