How to fetch creator's information of contact in outlook

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.NET

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Outlook

Hi guys,

Here is the scenario:
1. Logon the outlook via 'user1'(user1's email address is the user1@mydomain.com)
2. create a contact in the public folder in outlook(contact1)

Question:
Most of time, the contacts under public folder in outlook would be created by different users. Is there any way i can fetch the contact's creator's email address and mailbox? In this case, I want to get the "user1@mydomain.com" via contact1.

I am trying to address this issue by MAPI, but so far, no luck.

Really appreciate your helps.

Best Regards,
Dragonfly