What should my Java preferences look like?

I have a new courier firm that uses Java applets to control printing of labels
Java 7 is running on my system

In their help guides its easy I just go to Java preferences, enable
applets, and allow a trust certificate

Except that there is no enable applets in Java preferences
and it doesnt look like any images on web I can see

How can I fix to allow printing or is this a Windows based
job now?

Thanks for reading