help me out to get rid of dis run-time error

[Prakash.J]

hi,
i am sending u d code i hav written......when i execute it...it displays d no. of msgs in inbox n after tat gives a runtime error [ at d line: MAPIMessages1.Send() ]

saying tat:

An unhandled exception of type 'System.Runtime.InteropServices.COMException' occurred in microsoft.visualbasic.dll
Additional information: Unspecified Failure has occurred

also i would like to know how to suppress the pop up window which pops up everytime b4 sending a mail.....

Imports System
Imports MSMAPI
Imports System.Runtime.InteropServices

Public Class Form1
Inherits System.Windows.Forms.Form
#Region " Windows Form Designer generated code "
#End Region
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim i As Integer
Dim MAPISession1 = New MAPISession
Dim MAPIMessages1 = New MAPIMessages
MAPISession1.SignOn()
MAPIMessages1.SessionID = MAPISession1.SessionID
MAPIMessages1.Fetch()
MsgBox("You have " & MAPIMessages1.MsgCount & _
" messages in your inbox!")

'If MAPIMessages1.MsgCount > 0 Then
' For i = 0 To MAPIMessages1.MsgCount - 1
' MAPIMessages1.MsgIndex = i
' ListBox1.Items.Add("From:" & MAPIMessages1.MsgOrigDisplayName & _
' " Subject:" & MAPIMessages1.MsgSubject)
' Next
'End If
MAPIMessages1.Compose()
MAPIMessages1.RecipAddress = "[e-mail]"
MAPIMessages1.MsgSubject = "u made it"
MAPIMessages1.MsgNoteText = "god loves you"
MAPIMessages1.Send()

MAPISession1.SignOff()
End Sub
End Class

[ahura]

How do your over come this error and are due to what reasons
The first error msg was say unspecified error
the second error msg showed cannot start yr application the workgroup information file is missing or opened exclusively by other user.