UBB.threads PHP Forum Software Community Forums UBB.classic UBB.classic 6 Support These content Island things. How do I get one to appear on my board?

I have created a content island. I have the following html code generated upon creation.
Where do I put it? What is the file name on the server I need to put this code in?

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*[The Code]

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<!--#include virtual="d:/vhosts/myusername/public_html/ubb/ContentIslands/2/html.html" -->

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I wish I had more knowlege about this stuff. Its why I'm here so I can participate and learn. You have to admitt. I'm getting better.