Marc! Thank you very much, it was of course as you say! I've been meaning to come back to thank you.
The non existent "issue" i created is that on the access software site the latest 32-bit version does NOT have "windows xp" listed in compatibility.
Virus TI Installer 5.0.8.00 for Windows 32 bit
This software is compatible with Windows 7 32bit and Windows 8 32bit
However LOWER down the list
Virus TI Installer 4.5.3.00 for Windows 32bit
This software is compatible with Windows XP 32bit, Windows Vista 32bit and Windows 7 32bit.
I mistakenly assumed that version would be the newest version that would run on XP. I installed 5.0.8 on xp and it's working fine.
Thanks again.