Secured Mutex

Hi,
I need to create a "Global Secured Mutex" that cannot be Opened or
Created by a 3rd party application. This mutex it's shared between 2
applications.

Anyone has an idea how to implement this ? I am thinking at a solution
but is not straight at all. Create a new System User, LogonUser,
ImpersonateLoggedOnUser, Set Security Attributes for mutex.

It;s there a simpler method to archive this ?

Thanks in advance

cpp