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."
Windows 2008/2012 R2 Server
The install program looks for the JAVA_HOME variable and it must point to a valid JVM.
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.
This is a prerequisite for a 12.1 Web Viewer for Windows Server Install.