The following SQL is from the SQL view in the Access QBE grid and works OK.
SELECT Count([date closed]) AS Total, (Select count(WinID) from (SELECT qryAdHoc.*, * FROM qryAdHoc WHERE format (qryAdHoc.[Date Closed],"mm")= "11" and format (qryAdHoc.[Date Closed],"yyyy")= "2008" )) AS Won
FROM...