Has anybody tracked down the specific file system rights needed on a Windows Share for a user to see the contents in a Net Folder?

I've got a share with files in it. If my filr user is specifically granted rights on the security tab of a specific file then that file shows up in the net folder. However, if that same user is a member of the administrators group and the administrators groups is granted rights but not the specific individual, then the file is not visible. WAD?