Mapping Network Drive Dialog & Rundll32

I am writing an application that gathers information about various source locations of utilities. And in one dialog box I want to give the user the option to map a network drive to browse for more programs.  My question is this: How do I make the "Map Network Drive" dialog box appear? I know that (for example) you can use RUNDLL32 to open the 'Open With' dialog box, and I was wondering/hoping there was a similar way to do this for Map Network Drive. Does anyone out there know how to do this? Or another way to spawn this dialog box?

I am writing this application using Borland C++ Builder if that helps at all.

Thanks alot.

Eclipse