Adsync and Individual Administrators

When I run the command line regsvr32 nadsync.dll from one computer, will it initialize Active Directory Sync throughout the entire domain (ie. For all Administrators?)

If so, how do I disable for one of the administrators? She only creates one type of user, and that user doesn’t need access to any of our Domino servers.

I know there is a regsvr32 -u nadsync.dll command discussed, but will this kill the Active Directory sync for all Admins?

Thanks in advance.

Marty