So, I recently packed my Java4k game to a size that would make it qualify. I then found that on my website, the applets gives people errors which open up with a dialogue box which displays the class name. When you press details, you end up with a window which shows the plugin version, the JRE version, home directory, some commands, and then "Detected from bootclasspath: "<insertpathhere>\\jre\\lib\\deploy.jar". I am using the following applet code:
<applet code="N.class" archive="TD4K.kz.pack.gz" width="500" height="500"><param name="java_arguments" value="-Djnlp.packEnabled=true" /></applet>
Now, I don't know if this is some rookie mistake or what, but any insight is much appreciated. Also, the applet seems to work fine on the computer I developed the game with, but on any other computer it gets the error.