Just tried to install the Exchange Administration tools on the XP laptop and it failed due to the message ‘The component “Microsoft Exchange System Management Tool” cannot be assigned the action “install” because the Windows 2000 Administration Tools must be present.’
This is because the install checks for the 2000 version of the adminpak which is incompatible with XP. (I had already downloaded the adminpa for Windows2003/XP. A patch is available from Microsoft that fixes exchange installation software to allow installation on xp.