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Thank you all very much for helping me. However, I have spent many hours today trying to initiate this software but without success - and I hate being beaten!
I have tried everything suggested and really persevered, but a GWUTIL .DLL file cannot be initiated, although it is present within the file. I have come to the decision that there is something (and I can't find it) preventing me from opening the programme. It is like, for instance, when one downloads a free game for a limited period, and when the time is up, that's it unless you pay for it! Hence, I think that is why it's OK on my husband's xp and not mine.
I've tried looking thru the files and the data bases as far as I am able, but my technical knowledge is limited.
Incidentally, I did get a free copy of vista ( although I had to pay �30 pp) but I'm wary of downloading it in view of reviews I have read. I may download it on my laptop which I don't use very often, also an xp.
Once again, many, many thanks.