Pro Tools 11 and Sampletank 3

I have just installed Sampletank 3 on my PC.

I can see that my Aux tracks and my Instrument tracks insert columns show options for plug-ins such as Xpand!2 and others, but as yet, Sampletank 3 is not shown.

I need help to get Pro Tools to "See" Sampletank 3.

Thanks in advance for your assistance.