Add or joining computer to a domain programatically

Hi all,

I m working with Windows server(2003,2008,2012), and working on Active Directory.I have a domain in active directory and have approx 100 clients machine on this doamin.
 i want to make a program for "add or join" to computers in domain programatically, i m working in c++,vc++ and using MFC in visual studio environment.

Is there any API available provided by microsoft.i m not able to do this?

Does anyone have an example code for or other information for this.i m okking for API method to work on this.

please help me regarding this.

Regards:cric

Thanks to all.