SUCCESS ! ! ! !
I downloaded the new 8.1 Windows for my Windows 8. I then I reinstalled the game on my 'D' drive as I like to keep the 'C' drive for the operating system.
The installation was done as Administrator and then I put the Activation Key in to register and got the window up saying it wanted a security key as per usual and again it wouldn't load. So as previously instructed I tried to start the game again as Administrator without luck and it wouldn't start.
Note I close the Security Window before trying to start the game.
I then tried something which I had tried before that had not worked but was worth trying again... I double clicked on a 4gb patch that I use for other 32bit games and instructed it to work with this game... this time the game started ! ! ! ! Hurrah ! ! !
As I have tried it all before without success I can only assume that that the Windows update helped.
Anyone else wanting to try the 4gb patch which is free and very easy to use can download from here:
www.ntcore.com/4gb_patch.php
PS. The patch is for Window 7 and 8 only
Happy days.
Thank you for all the help guys especially Kivlov
Gee