Hiding extended attributes

System

Hey Everyone,

I am using TS 6.5 with SP2, and I am wondering if there is a way to hide certain extended attributes from the user.
i.e. lets say I am setting X and Y as two different extended attributes for files in my workflow. When the user clicks on properties for a file I just want him/her to see X and not Y.
Is this possible? if so, what's the best way to approach this?

Thanks,
Ido