See http://www.slipstick.com/exs/updategal.htm#samples for a sample link.

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Sue Mosher, Outlook MVP
Outlook and Exchange solutions at http://www.slipstick.com
Author of
Microsoft Outlook Programming: Jumpstart
for Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
> Hello , everyone
>
> how can i update exchange user account property such as
> title , company , department , handphone no through
> custom form . The purpose of this form is to allow users
> to update their particular when needed .