Thanks to all, I used the XP restore function which does (as you probably know but I did not) tell you once you start it that it will not touch your data or email files. It worked perfectly. Unfortunately I committed the cardinal afterwards of opening outlook as per normal. It immediately created a nice blank outlook .pst file, of the same name as my existing one, thereby overwriting all 200Mb of my old data, much gnashing of teeth. Still I have learnt something and will be wiser for next time. Thanks for helping guys.