Visual Basic Code To ASP.Net Windows Application

I want code convert Visual Basic 6.0 To Windows Application. I am not getting any tool which convert code in the right way.
I have follow this link but not convert successfully .

Code is given below:
Private Sub cmbOptionType_Click()

If cmbOptionType.Text <> "" Then
If oFs.FolderExists(var_LocalAddress) = False Then
MsgBox "Local path (" & var_LocalAddress & ") is not found!", vbExclamation + vbOKOnly, "Error..."
Exit Sub
End If
Call GetSectionWiseData(Trim(cmbOptionType.Text))

Thanks & Regards
Nitin Sharma