Mimimwatch just won't start

[simoncn]

(16-07-2017 16:47)chrisbridgeave1 Wrote:  OK Thanks - so I have confirmed that by running javaw -jar mwatch.jar at command prompt - Hurray Minimserver launches

How do I "fix" this permanently? Jarfix doesn't seem to and I have "Java™ Platform SE Binary" as the default app for .JAR files

It is not the default app that is wrong. The problem is the Description column in the list of filetype associations. For .jar, this column should say Executable Jar File. If it says something else (such as JAR file), you will get the problem you are seeing.

I have never seen this problem myself although it has been reported by other users. If you uninstall Java, what do you see in the Description and Current Default columns for the .jar file association?