How to hide main dialog

[Crystal]

I have a dialog-based application. I would like to hide the main dialog and display an icon only in the system tray. I've tried to use ShowWindow(SW_HIDE), but the dialog still appears. In "ApplicationName.cpp" file and in "InitInstance" module, my codes look like the following: CFwuTestDlg dlg; //1 //the main dialog m_pMainWnd = &dlg; //2 m_pMainWnd->ShowWindow(SW_HIDE);//3 m_pMainWnd->UpdateWindow();//4 int nResponse = dlg.DoModal();//5 return FALSE;//6 I've tried to delete line 5, but Windows complains that .exe file generate error. Could anyone help me? Thank you.

[Sam Hobbs]

First, you do not need to hide the dialog. The way that the system tray works is that windows are minimized to be not shown. http://www.codeproject.com/shell/systemtray.asp http://home.socal.rr.com/samhobbs/VC/TaskbarStatusIcon.html You certainly do not want to remove the DoModal (line 5) but you do want to remove the ShowWindow and UpdateWindow (lines 3 and 4).