Calling VB .dll Activex plugin directly from AutoCAD

I initially developed plugin in VBA. I would load it in the Startup
Suite, and to call it from user interface I added the line in the menu:

oPopup.AddMenuItem 21, "ECCAD plugin", "-vbarun
ThisDrawing.ECCADStartPoint" & vbCr

(ECCADStartPoint() is the "main()" function in my plugin)

I recently ported everything to VB ActiveX dll but I still call it from
VBA plugin like this:

Sub ECCADStartPoint()
On Error GoTo errhandler

' ABSECCAD is a COM object exposed in my VB ActiveX DLL
Dim a As New ABSECCAD

a.main ThisDrawing, AecbApplication

Exit Sub

errhandler:
MsgBox "Unknown error in ECCADStartPoint !", vbCritical, "ECCAD
plugin error"

End Sub

As you can see I need to pass ThisDrawing and AecbApplication to my DLL
as a parameters

It all works as expected, but I would like to get rid of VBA plugin
completely because it's not needed anymore - it is only used to to call
my ActiveX DLL and pass parameters to it.

How would I do this directly from the AutoCAD menu? Is it even
possible? I tried searching knowledge base but didn't find anything