I think this is a drive size problem rather than an XP problem. The installer with CVI 4 does not understand drive sizes bigger than a certain amount.
I recall this being discussed on the CVI mailing list an age ago; but sorry, I cannot recall whether there was a fix for it. You may want to try asking on the mailing list if you get no joy here, since there are participants there who do not use this forum.
Martin.
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Martin
Certified CVI Developer