you can call the export command with a script.
Unfortunately the dxf export dialog comes up too, and it seems you can only remotely control this dialog with complicated windows api commands.
' Dim something ---------------------------
Dim App As Object
Set App = CreateObject("PCDLRN.Application")
Dim Part As Object
Set Part = App.ActivePartProgram
Dim retVal As Boolean
' Do ---------------------------
retVal = Part.Export("C:\Users\QS\Desktop\Test123.dxf")
If retVal Then
App.StatusBar = "DXF: ok"
Else
App.StatusBar = "DXF: fail"
End If
' unDim something ---------------------------
Set Part = Nothing
Set App = Nothing
