No, if a person has even reviewer permisions, they can open items attached
to the calendar item.

--�
Milly Staples [MVP - Outlook]

Post all replies to the group to keep the discussion intact. All
unsolicited mail sent to my personal account will be deleted without
reading.

After furious head scratching, Grggy asked:

| I insert a lot of emails & files within my calendar entries, which I
| don't necessarily want others to read, but they help me to be
| orgainised. I am happy for others to view my calendar, but I don't
| want them to be able to double click into the entry and see
| details/attachments. Is there any way to control this? I've tried
| all the permission levels, and can't seem to make it work!