It used to be possible in sql 2000,
http://www.sqlservercentral.com/scripts/T-SQL+Aids/31522/The first one is nasty and if it is important to you to view it, do a free registration or use bugmenot
But Microsoft removed the undocumented feature in Sql 2005 onwards.
http://www.sqlnewsgroups.net/group/microsoft.public.sqlserver.server/topic12697.aspx