Dear Friends I have two mfc application. One is a dll and the other one is a client exe application. From the exe application I am trying to load the dll and launch the mainwindow of the dll. For that in dll.....I have the view class there in view implementation file i am declaring a view pointer, like the code below Code: //RevolutionProjView.cpp file CRevolutionProjView *view; CRevolutionProjView::CRevolutionProjView() { view = this; } // The I am creating an [URL=http://www.go4expert.com/articles/using-extern-c-c-function-cpp-vice-versa-t27221/]extern C[/URL] function by name runAppli like below. extern "C" BOOL __declspec(dllexport) runAppli(void) { AFX_MANAGE_STATE(AfxGetStaticModuleState()); view->ShowWindow(SW_SHOW); return true; } Now I have exe applicatioln where I want to launch the mainwindow of the dll above is given below. Code: void CClientRevProjDlg::OnBnClickedButton1() { typedef VOID (*MYPROC)(void); HINSTANCE hinstLib; MYPROC ProcAdd; BOOL fFreeResult, fRunTimeLinkSuccess = FALSE; hinstLib = LoadLibrary(L"C:\\Users\\DasmahapatraS\\Projects\\Bhagavan_Cadem\\RevolutionProj_OrthoGraphic\\debug\\RevolutionProj.dll"); if (hinstLib != NULL) { ProcAdd = (MYPROC) GetProcAddress(hinstLib, "runAppli"); if (fRunTimeLinkSuccess = (ProcAdd != NULL)) (ProcAdd) (); fFreeResult = FreeLibrary(hinstLib); } if (! fRunTimeLinkSuccess) printf("message via alternative method\n"); } With this my application mainwindow is appearing but immediately its crashing. Can anyone tell me whats going wrong. How can I launch the mainwindow of the dll ?? Please help me. Thanks Sujan