The syntax depends on whether it's a built-in or custom Outlook property.
See http://www.outlookcode.com/d/propsyntax.htm
FYI, there is a newsgroup specifically for general Outlook programming
issues "down the hall" at microsoft.public.outlook.program_vba or, via web
interface, at
http://www.microsoft.com/office/community/en-us/default.mspx?dg=microsoft.public
.outlook.program_vba

Signature
Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
> How does one transfer information from a specific field in an Excel
> worksheet to a specific field in an outlook calender from an Excel macro?
>
> Thanks,
> Kevin