Standalone Viewer and Command.Addline

I am trying to create a VB script to open two pictures in separate instances of the standalone viewer - one at position 0.0. on the screen and the other at position 0,1600. This will allow me very quickly to check on original and re-touched images without opening them in Photoshop.

I have managed to get the path and name of the files in two variables

PicA

PicB

What is completely defeating me is how to construct a ClickData.Func.Command.AddLine

command that will open each in the appropriate place in a separate instance of the standalone viewer.

I have been trying for days now to crack this. Can anyone help with the appropriate command?

ClickData.Func.Command.AddLine("Show """ & PicA & """ POS 0,0 NOUSEEXISTING")
ClickData.Func.Command.AddLine("Show """ & PicB & """ POS 0,1600 NOUSEEXISTING")

Many thanks, Jon.