Cannot see all properties on Summary tab on File Properties seen from explorer.

Hi,

We have proprietary file which is structured storage one. We store all
standard property sets such as summary information property set. When
I see File Properties from explorer on Win2k OS, I see all Summary
properties under Advanced->Origin.
When I see file properties for the same file from explorer on WinXP
OS, then I cannot see all summary properties under Advanced->Origin. I
see only Source, Author and Revision Number.

What could be the possible reason? Is there any way to show all
properties on XP?

Thanks and Regards,
Sachin Arey