Hi again Chris,

Sorry, as I presumed you were in a rush to get a reply, I had not read all your 
email thoroughly.
My Reply in Situ below

On 21/07/2013, at 10:04 AM, Ronda Brown <ro...@mac.com> wrote:

> The software is large (ArcGIS) and system requirements say anything from XP 
> professional home edition with service pack 3, and up wards is required for 
> it to run. I have tried installing it but an error appears saying a service 
> pack is required?

Ok, still check what version of WindowsXP you do have installed by following 
instructions in my previous reply. But if you are receiving that message I 
would think you don't have SP3 installed and also don't have Automatic Updates 
turned on.
> 
> I have XP, but Im not sure if it is Professional and if it has the SP3? 
> I have tried looking online and with Microsoft and only found SP3 for network 
> and developers, so am not sure if this is what I need?

Yes. Go here and download the stand-alone Windows XP SP3 package from the 
following Microsoft Download Center page.
Although this page says that the installation package is intended for IT 
professionals and developers, you can safely download and install this file.

<http://www.microsoft.com/en-us/download/details.aspx?id=24>
More info here: <http://support.microsoft.com/kb/322389>

Cheers,
Ronni
Sent from Ronni's iPad4
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