Please allow us to give you an example.
Our company's main website is radinks.com if we purchase a single website license of
any of our products we can deploy it on www.radinks.com and radinks.com because they
are both identical. In other words radinks.com is an alias for www.radinks.com
We have another website at mms.radinks.com wich is different fro www.radinks.com, since
we have already used our single website license on www.radinks.com the applet cannot be
used on mms.radinks.com we need to purchase another license or you can buy the
ISP license.
The important point to note is that though both websites have the same domain name (radinks.com)
but mms.radinks.com and www.radinks.com have different content and different urls so they
are different websites.
If you have several websites hosted on the same webserver you might want to look at our
ISP license which can lead to huge savings.