I am designing an email extractor program which is working fine except for at the end of my program I want to delete mail that is not relevant but I keep getting the following error:

"OLE Error Code 0x8002000f: Parameter not optional."

Anybody got any pointers??

Here is my code:

loOutlook = createobject('outlook.application')
loNamespace = loOutlook.GetNameSpace("mapi")
loTaskbox = loNamespace.GetDefaultFolder(6)   && task folder
loitems = lotaskbox.Items

for v = 1 to loitems.count
	loItem = loitems.item(v)
	with loItem
		DO CASE 
			CASE .subject = 'RE: Hanger Booked into System'
				? "Extracting Mail: ", loitem.subject
			OTHERWISE
				? "Deleting Mail: ", loitem.subject 
				loItem.Delete()
		ENDCASE
	endwith
endfor

Many Thanks