Can someone offer some assistants configuring Prohibited software section in Desktop Central?  It seems it really doesn't do to much...

I've listed a number of programs that I don't want on my network, but users are still able to install them without problem.  

For a test, I added a program called "PDFKey" to the Prohibited list.  It correctly detected it on machine.  I then went ahead and installed it onto another machine.  It showed up in the in the inventory, but the user did not get a warning and could use the program.  Right clicking the Desktop Central agent on the client machine and selecting "View Prohibited software" informs me that I have no prohibited software!!! 

What is it supposed to do?