Install MSDE need XP disc

I have been installing MSDE2000 on several XP machines. Couple of them asked
for XP installation disc during the installation of MSDE. Others didn't.
Does anyone know why sometimes the installation of MSDE need the XP disc?
Thanks in advance.
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Regards,
OttoThere might be requirements for things that weren't set up initially, like
TCP/IP/network support, MDAC, etc. I'm not sure of all the system
requirements for MSDE but if these installations are not all identical there
will likely be some required items missing...
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"Otto" <Otto@.discussions.microsoft.com> wrote in message
news:E7E21430-74ED-425B-B2CB-787D7DC6C66C@.microsoft.com...
> I have been installing MSDE2000 on several XP machines. Couple of them
asked
> for XP installation disc during the installation of MSDE. Others didn't.
> Does anyone know why sometimes the installation of MSDE need the XP disc?
> Thanks in advance.
> --
> Regards,
> Otto