Note: the article above suggests using sp_detach_db and sp_attach_single_file_db to quickly shrink the log file. However, if a database has more than one physical log, this technique should not be used. Every database requires at least one log file. Additional log files can be added and removed using the ALTER database statement in T-SQL, from Enterprise Manager or with SQL-DMO. See the Microsoft online article about adding and deleting files.