var ctrlman = m_Map.GetCtrlMan();
ctrlman.SetDefaultPath("C:\\Temp");
var path = ctrlman.GetDefaultPath();
var epath = ctrlman.ExpandDefaultPath("First");
alert("Default Path : " + path + ", Expand Path : " + epath);

#include "CXCtrlMan.h"
CXCtrlMan ctrlman = m_Map.GetCtrlMan();
ctrlman.SetDefaultPath(_T("C:\\Temp"));
CString path = ctrlman.GetDefaultPath();
CString epath = ctrlman.ExpandDefaultPath(_T("First"));
CString str;
str.Format(_T("Default Path : %s, Expand Path : %s"), path, epath);
AfxMessageBox(str);