Local Norton Zone folder

When I place files into the local Norton Zone folder on my computer, the local Norton Zone folder size increases to reflect the additional files.

 

My question:  Does that mean that I am creating duplicate files each time I place an item in the Norton zone folder or are these files just a ‘reference’ to the original files?

 

In other words, if I add 2GB worth of files to the local Norton Zone folder, am I reducing my computer drive space by 2GB because the files are being duplicated in the local Norton Zone folder?

 

I have not had the chance to add enough material yet to check this properly, but thought someone might have some insight on this.

 

Thanks