disable the exit button that present at right top corner,i used to disable that by context menu property as false, it remove the icon of the MDI form too.

I do that without disable the icon of the form. any one know about this post your reply.

thanks in advance.

When the user hit the exit button,It shows the message box like "Are you sure to exit" with yes/no option.

Code here,
==================
Private Sub Form2_FormClosed(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
Dim a As Integer
a = MessageBox.Show("Are you sure to close", Text, MessageBoxButtons.YesNo)
If a = 6 Then
'Application.Run()
e.Cancel = False
Else
'Application.Exit()
e.Cancel = True
End If
End Sub
======================