AFAIK, it's not possible. Group schedules are a special hidden variant of appointment items. If you want to try to hack them, get yourself a copy of Outlook Spy or MFCMAPI and start exploring.

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Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
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> Hi all,
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> Den