I was able to check running sessions in old attachmate using the following VB.NET code:

1. Add reference to Interop.EXTRA.dll
2. Public Class Form1
Private exSystem As EXTRA.ExtraSystem
Private exSessions As EXTRA.ExtraSessions
Private SessList As ArrayList

Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
exSystem = New EXTRA.ExtraSystem
exSessions = exSystem.Sessions
For x As Integer = 1 To exSessions.Count
'do something here
Next
End Sub
End Class

How can I achieve the same with Attachmate.Reflection?