Thanks. Here's the code . If the number of exceptions is less than 140, all
appointment items show in outlook's "day/week/month" view. But if the number
is something like 150, nothing shows in the view. However, the exceptions
are in the message's attachment table and look valid.

_AppointmentItemPtr appt = m_pApp->CreateItem(olAppointmentItem);
 appt->Subject = "test";

 COleDateTime today(2005, 9, 6, 0, 0, 0);
 appt->Start = today + COleDateTimeSpan(0, 16, 0, 0);
 appt->End = appt->Start + COleDateTimeSpan(0, 1, 0, 0);

 RecurrencePatternPtr recurPat = appt->GetRecurrencePattern();
 recurPat->RecurrenceType = olRecursDaily;
 recurPat->PatternStartDate = today;

 appt->Save();

 appt =
m_pApp->GetNamespace(L"MAPI")->GetDefaultFolder(olFolderCalendar)->Items->Item(1);
 recurPat = appt->GetRecurrencePattern();

 // if i < 140, appointments show in outlook's "day/week/month" view
 // if i > 140 or so, appointments do not show in outlook's
"day/week/month" view
 // in all cases, appointments show in MAPI attachment table and in
outlook's "by category" view

 for (int i = 0; i < 150; i++)
 {
    _AppointmentItemPtr exception = recurPat->GetOccurrence(appt->Start +
COleDateTimeSpan(i, 0, 0, 0));
    CString cs;
    cs.Format("%d", i);
    exception->Subject = (bstr_t)cs;
    exception->Save();

    appt->Save();
 }