Sub SplitPolylineBasic()
  Dim pMxDoc As IMxDocument
  Dim pMap As IMap
  Dim pFeatureLayer As IFeatureLayer
  Dim pInFeatureClass As IFeatureClass
  Dim pOutFeatureClass As IFeatureClass
  
  Set pMxDoc = ThisDocument
  Set pMap = pMxDoc.FocusMap
  Set pFeatureLayer = pMxDoc.SelectedLayer
  Set pInFeatureClass = pFeatureLayer.FeatureClass
  '=======================================================================
  Dim ET As New ETGW_Core
  Dim sOutFileName As String
  Dim sOption As String
  Dim dSegmentLength As Double
  Dim sMessage As String
  dSegmentLength = 0.05
  sOption = "SegmentLength"
  sOutFileName = "c:\00\split_polylines.shp"
  Set pOutFeatureClass = ET.SplitPolylineBasic(pInFeatureClass, sOutFileName, _
                                         sOption, dSegmentLength, sMessage)
  '========================================================================
  If Not pOutFeatureClass Is Nothing Then
    Set pFeatureLayer = New FeatureLayer
    Set pFeatureLayer.FeatureClass = pOutFeatureClass
    pFeatureLayer.Name = pOutFeatureClass.AliasName
    pMap.AddLayer pFeatureLayer
  Else
    MsgBox sMessage
  End If
End Sub