Context Menu entries for Norton ISS

I'm running W7 64 bit version. I am not a fan of Windows Explorer so I use replacements.

 

Generally I like a specific 32 bit File Manager. Cubic Explorer is the one. I know it has drawbacks using that one on a 64 bit OS. For that reason I started looking at 64 bit replacement file manager. I got Xplorer2 for what it is worth.

 

Now my question :

 

I noticed playing with the there are different entries in the contect menu for files? Some are the same and some are unique to either the 32 or 64 bit file manager. Many are in both?

 

Some that are in both are clearly 32 bit programs, like NFOPAD and FILEALYZER2. One that is only in the 64 bit context menu is Norton? How come? Bug? Others can do it, why not Norton?

 

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Irv S.