I have written a .Net service in C# to support transferring data from
an SQL database into Exchange contacts. I went to CDOLive.com to get
the code that supports adding information to the File As field.

This approach works just fine in Exchange 5.5, but for some reason, it
does not quite work in Exchange 2000. The File As field appears
populated when you look at the contacts in folder views, but when I
open the item, the File As field in the item appears blank.

I'm not sure how to resolve this but my first guess based on debugging
the code is the potential difference between the value of 0xFFFFFFFF
in .Net and VB6. In VB, 0xFFFFFFFF converts to -1, but in C#, it
converts to 4294967295. This is effectively the differences between a
long in VB versus a long in C#.

Does anyone have any ideas on how to get around this problem?

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