Ok, I've put it on Dropbox;
https://dl.dropboxusercontent.com/u/29310440/javaservice_x64.zip
The zip file contains the x64 version of JavaService.exe, msvcr100.dll (required for JavaService.exe) and two batch files.
The two batch files are to install and uninstall the service you will need to tweak these with your config. Note the batch file sets the service to "Manual" so you may want to change that to automatic.
The JAR file needs to be in the same directory as the other JavaService files.
Most important tips are to make sure you point at the correct JVM.dll file (ie 64bit) and also name your start entry point correctly with your package name plus ".main"
eg; -start com.mypackage.main
If you mix bits (ie 32bit JVM with 64 bit JavaService) it will not work. Also if the package name is wrong it will not work.