I have hit a new problem. I actually wish to run a 64-bit .jar file built with Java 1.11, which is only available as 64-bit. Is it possible for mingw32 to be used to run 64-bit java files? As far as I can tell, when I link with 32-bit Java 1.8, the resultant executable is unable to use the jvm.dll that comes with Java 1.11. I get an error: "The application was unable to start correctly (0xc000007b)" Thanks. Paul.