Visual C++ :: How To Call Dialog Window (formed As Resource) From DLL

Is there some document, that describe the sequence of actions, that result in displaying of a Dialog Window from a .DLL.

One important detail - the Dialog Window is created via resource/toolbox inteface.

Below is code from some example (which works), that displays simple window (with client area inside it).

In this code the window class is ctreated inside of application class.

Here is extract from application class:

Code:
class CMyWindow : public CFrameWnd {
CStatic* cs;
public:
CMyWindow();
};
CMyWindow::CMyWindow() {
Create(NULL, L"MyWindow", WS_VISIBLE, CRect(0,0,200,200));

[code].....

Where is my mistake ?