Help me please : write MFC-DLL

- I built a MFC-DLL with VC++6.0

I add very simple function : Hello :

void Hello()
{

CFileDialog dlg(0);
dlg.Domodal();
}

and I export this function in .DEF file


- I use this DLL in VB6
An error occur :

...
File : afxwin1.inl
Line : 19
...

I look afxwin1.inl, line 19 :

Line 18 : _AFXWIN_INLINE HINSTANCE AFXAPI AfxGetInstanceHandle()
Line 19 : { ASSERT(afxCurrentInstanceHandle != NULL);
Line 20 : return afxCurrentInstanceHandle; }

Why that?
don't my dlg have Parent Handle?

What will i do to show that Dialog in VB?
(I must built MFC DLL, not use ATL)

Please show me
Thank !

The problem is that program tries to find dialog template in
caller exe resource and not in dll resource. See details in MSDN
topic AFX_MANAGE_STATE.

But when I add this line into top of function :

AFX_MANAGE_STATE(AfxGetStaticModuleState());

Then Compiler error :

mfcs42d.lib(dllmodul.obj) : error LNK2005: _DllMain@12 already defined in DLL_TESt2.obj
mfcs42d.lib(dllmodul.obj) : error LNK2005: __pRawDllMain already defined in DLL_TESt2.obj

I don't understand why
How can I do?