Hi Macropod
Unfortunately not - I've only got the graphic to go on.
I've just found a way of putting blocks of colour in, one for each letter of the last line. Unfortunately the address font is proportional and mixed case - I've now found out it contains a postcode - so I would not need to measure the font size in twips or something in order to control the number of blocks to use, so this is probably starting to to be too complicated to use.
This is what I have at the moment. The ref line is a text box with the coloured blocks (ASCII 166) floating in the background anchored to the last line of the address:
red line 2.jpg
I suppose the easiest way to do this would be to have more control over the underline than word allows!