I am trying to find out through registry checking whether or not Apache Tomcat 
9.0.8 is already installed or not. If the below registry is not there, then my 
program installs Apache Tomcat 9.0.8 installer otherwise it moves on to other 
installation and completes. It's kind of prerequisite check program.

HKEY_LOCAL_MACHINE\SOFTWARE\Apache Software Foundation\Tomcat\9.0\Tomcat9

However, everytime program just proceeds to install Tomcat despite it is 
already installed? Am I checking wrong registry?


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