How to copy a dialog resource from an EXE to a DLL

Does anyone know how to do this? I tried using the sample code in MSDN,
condensed below. Using the IDE I looked at "result" and it was true. All the
preceding variables appeared to have valid handles. But when I check the
second instance of "DlgStep1Resource", it is NULL.

Can anyone help me.

Thank you very much.

void CImportController::SetResource(UINT DlgResourceID)
{
    HGLOBAL DlgStep1ResourceHandle;
    HMODULE ParentModule;
    HRSRC DlgStep1Resource;
    HANDLE hdlUpdateResource;
    LPVOID pTemplate;

    ParentModule = ::LoadLibrary("ImportPrototype.exe");

    DlgStep1Resource = FindResource(ParentModule,
MAKEINTRESOURCE(DlgResourceID), RT_DIALOG);

    DlgStep1ResourceHandle = ::LoadResource(ParentModule, DlgStep1Resource);

    pTemplate = (LPVOID) ::LockResource(DlgStep1ResourceHandle);

    hdlUpdateResource = ::BeginUpdateResource("ImportWizardFrameworkD.DLL",
FALSE);

    DWORD ressize = SizeofResource(ParentModule, DlgStep1Resource);

    BOOL result = ::UpdateResource(hdlUpdateResource, // update resource
handle
                            MAKEINTRESOURCE(RT_DIALOG), // change dialog box
resource
                            MAKEINTRESOURCE(DlgResourceID), // dialog box name
                            MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL), // neutral language
                            pTemplate, // ptr to resource info
                            ressize); // size of resource info.

    result = ::EndUpdateResource(hdlUpdateResource, FALSE);

    // See if the dialog really got copied
    ParentModule = ::LoadLibrary("ImportWizardFrameworkD.DLL");

    DlgStep1Resource = FindResource(ParentModule,
MAKEINTRESOURCE(DlgResourceID), RT_DIALOG);
}