WebStart keeps trying to use Java 1.4 when I have Java 1.6 installed

I am having an issue where I have Java 1.5 and 1.6 installed but when I try to open a specific webstart app, it keeps trying to use Java 1.4. I have tried uninstalling Java 1.4 but when I try to open it, it just reinstalls Java 1.4 and tries to use that again. It is using Java Web Start. I don't know why this is happening. I have used websites to check which ve开发者_运维问答rsion of Java is running on my machine, I have checked in the command prompt, and I have also checked in the browser settings. I have checked my environment variables and my JAVA_HOME variable and PATH variable are both pointing to Java 1.5.

Does anyone know what the issue may be or anything else I could try to troubleshoot this?

This is a problem with the JNLP-file explicitly requesting Java 1.4, and you need to alter it in order to fix this.

A simple fix, that may be usable, is to change the "1.4" string for the requested version to "1.4+" which will pick any later version if 1.4 is not available.