Cannot send outlook message through Invoke Code Activity

Hey!

I need to send an e-mail message through MS Outlook, but using VB.NET in Invoke Code instead of activity. This is because i will expand it with possibility of sending invitations for meetings. The code is from code.msdn page.
My VB Code looks like this:

Dim oApp As Interop.Outlook._Application
oApp = New Interop.Outlook.Application

    Dim oMsg As Interop.Outlook._MailItem 
    oMsg = oApp.CreateItem(Interop.Outlook.OlItemType.olMailItem)

    oMsg.Subject = mailSubject
    oMsg.Body = mailBody

    oMsg.To = sendTo
    oMsg.CC = sendCopyTo


    Dim strS As String = attachmentPath
    Dim strN As String = attachmentName 
    If attachmentPath <> "" Then 
        Dim sBodyLen As Integer = Int(mailBody.Length) 
        Dim oAttachs As Interop.Outlook.Attachments = oMsg.Attachments 
        Dim oAttach As Interop.Outlook.Attachment 

        oAttach = oAttachs.Add(strS, , sBodyLen, strN) 

    End If 

    oMsg.Send() 

I created necessary variables. Also I added following namespaces:

Microsoft.Office
Microsoft.Office.Interop.Outlook
Microsoft.VisualBasic

I also encoded a reference to interop.outlook.dll using a notepad.

Unfortunatelly i receive an error message:

“Option Strict On disallows implicit conversions from ‘Object’ to ‘Microsoft.Office.Interop._MailItem’. At line 5”.

Does anyone know what am I doing wrong?

Someone please help? Need this solution either

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Try to replace 5 row with

It’s common rule always cast all method return object to specialised object, this method should return