Sharing master page between different web applications

Hi,
 
I want to share a master page between different web applications. Can anybody please advice me how can I do it? I have master page in a web application called CommonLogin, can I have detailed page in FFVP application which can access the master page from Commonlogin, like FFVP I would like to have different web application which use the same master page from CommonLogin. Here is the error message I am getting
 
The virtual path '/Internet/apps/CNPWeb4.5/CommonLogin/CNP.Master' maps to another application, which is not allowed
 
Please help me any kind of help is helpful. Thanks in advance.