Maybe I'm missing something here.  What I gather is that you have a file share (or shares?) that currently have permission set so that "Authenticated Users" and "Everyone" have access (read and write?).  You want to limit access to these shares.  So, is there a reason you can't simply remove these groups and add only the users/groups you want to have access?
Also, could you define the "corporate requirements"?  If your company requires everyone access on all shares, you need to rethink your security policy.  Also, if you're not in IT, you should NOT be messing with the registry, or your security settings  AT ALL!  If you have security concerns, discuss them with IT.  If you are IT, I'm still missing what the issue is here.
Are you maybe trying to prevent users from creating shares with default permissions for "Everyone"?
Please clarify.

Hi,
     if it's your aim to prevent write access for everyone group and auth user then you need to uncheck the write access and give them read, also you can block inheritance form the main folder. if this is not the answer you expect then clearify your quetion.

termight
............
MCSE+security

How about a logon script that removes the Shares or changes the Permissions?  You can do this with plain old "net share" command or use a more advanced scripting language, such as VBScript or PowerShell. 

hi Bemed,
    The below script has been working for specified shared folder.
Still looking for the script which will scan and remove the share configured for authenticated users and Everyone group.



Thanks in advance