3 is the maximum. You can't change that.

Signature
Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
>I am trying to print more than the 3 lines which Outlook allows in the
> autopreview, without printing in memo style. Some events have no comments
> and some have fifteen lines, and I would like to get it to print in table
> style, but print all of the comments regardless of lenght.