Calendar dates returned wrong thru webDAV?

["JackBlack"]

Hi, all!  Accessing Exchange 2k3 via  ASP.Net (WebDAV) on Win2k3 R2 
Server...

Is there a problem with edited or deleted Calendar items in a public folder 
showing up in a WebDAV query that DON'T show up in Outlook?  For example, 
I've got an event being retrieved by WebDAV on one day that doesn't show up 
in Outlook, and another single event (mutliple days) that is showing up in 
Outlook as three days (correct: 11/27 thru 11/30)) but the data being 
retrieved by WebDAV covers five days (11/27 thru 12/1).

Is there an issue with edited or deleted calendar items?  Is there some 
other flag or field that needs to be taken into account to get the correct 
days?!!??  WebDAV query at the bottom of post...

Very confused here.  Some single-event multi-day events (not recurring 
events) work fine, others are just completely wrong (don't match with what I 
see in Outlook).  Help!!

Thanks,
Jack


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        strQuery = "<?xml version=""1.0""?>" & _
                   "<g:searchrequest xmlns:g=""DAV:"">" & _
                   "<g:sql>SELECT ""urn:schemas:calendar:location"", 
""urn:schemas:httpmail:subject"", " & _
                   """urn:schemas:calendar:dtstart"", 
""urn:schemas:calendar:dtend"", " & _
                   """urn:schemas:httpmail:htmldescription"", " & _
                   """urn:schemas:calendar:alldayevent"", " & _
                   """urn:schemas:calendar:busystatus"", 
""urn:schemas:calendar:instancetype"" " & _
                   "FROM Scope('SHALLOW TRAVERSAL OF """ & strCalendarURI & 
"""') " & _
                   "WHERE NOT ""urn:schemas:calendar:instancetype"" = 1 " & 
_
                   "AND ""DAV:contentclass"" = 
'urn:content-classes:appointment' " & _
                   "AND (""urn:schemas:calendar:dtstart"" &gt;= '" & 
strBuildExDate(dteStart) & "' " & _
                   "AND ""urn:schemas:calendar:dtstart"" &lt;= '" & 
strBuildExDate(dteEnd) & "' " & _
                   ") ORDER BY ""urn:schemas:calendar:dtstart"" ASC" & _
                   "</g:sql></g:searchrequest>"