Hello David
thanks for that but it wasn't what I was looking for, it was a little too
time consuming for me. I continued my search and just to help anyone else
who may be interested particularly when trying to use MS Maps or Google Maps,
I found this site:
http://www.travelgis.com/geocode/
This is exactly what I was looking for and it is not a converter as such,
all you have to do is enter the post or zip code, choose the country and you
are up and running. I had over 100 locations completed within a few hours.