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On this download page i downloaded dbvisualizer.zip and unpacked it to a folder. Starting the dbvis.exe i get this error:

No JVM could be found in your system. Please define EXE4J_JAVA_HOME 
to point to an installed 64-bit JDK or JRE 
or download a JRE from www.java.com. 

what i have tried

This (un-)resolved question how to solve no JVM found points to a faq-entry that is no longer there. But i found How do I change the Java version that DbVisualizer use and the reommendation there is to do this:

  1. In the DbVisualizer installation directory there is an .install4j directory,
  2. In this directory create a file named pref_jre.cfg if it doesn't already exist,
  3. Open the file in a text editor,
  4. Add the complete path to the root directory for the Java installation you want to use. Example: C:\Program Files\Java\jre7

Based on the given example path: C:\Program Files\Java\jre7 i have tried

  • Option A: C:\Program Files (x86)\Java\jdk1.8.0_31\jre
  • Option B: C:\Program Files (x86)\Java\jdk1.8.0_31\jre\bin

Option A without quotes gave:

The JVM found at C:\Program Files (x86)\Java\jdk1.8.0_31\jre is damaged. 
Please reinstall or define EXE4J_JAVA_HOME to point to an installed 
64-bit JDK or JRE

Option A with quotes and B with or without quotes gave the EXE4J_JAVA_HOME is missing error.

After closing the JVM found is damaged error message another error appeared:

The JVM could not be started. The maximum heap size (-Xmx) 
might be too large or an antivirus or firewll tool could 
block the execution.

Question

Does anyone know how i can use the dbvis.exe from the zip file (no installation) without changing the path variables of my system?

2 Answers 2

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In my case the answer was simple. The support had installed java 32-bit and i had downloaded dbvisualizer for the 64-bit version.

After downloading the 32-bit version it worked out of the box without any modifications on any of the configuration files.

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Or download the 64-bit java installation: https://java.com/en/download/manual.jsp

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