Here is the standard Java Options values when editing them via Windows Service. (tomcat7w.exe //ES//<Service Name>):

-Dcatalina.base=C:\Program Files\Atlassian\JIRAdev 6.1.2
-Dcatalina.home=C:\Program Files\Atlassian\JIRAdev 6.1.2
-Djava.endorsed.dirs=C:\Program Files\Atlassian\JIRAdev 6.1.2\endorsed
-Djava.awt.headless=true -Datlassian.standalone=JIRA -Dmail.mime.decodeparameters=true
-Dorg.apache.jasper.runtime.BodyContentImpl.LIMIT_BUFFER=true
-Djava.io.tmpdir=C:\Program Files\Atlassian\JIRAdev 6.1.2\temp
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
-Djava.util.logging.config.file=C:\Program Files\Atlassian\JIRAdev 6.1.2\conf\logging.properties
-XX:MaxPermSize=384m

Notice the 4th line. It has actually 3 parameters. Each parameter needs to be one it's own line in order for it to be recognized correctly.

This is why we always get a message in the logs on a fresh install about the mime decode parameters option not being set and had to add it to the end all the time. I'm just surprised this is the first time i've noticed that it was in there but on the same line as others.

Please resolve this in the installer so that the service will install correctly. Thanks.