It seems abcl generates correct result on some ANSI tests, but in actuality abcl fails. The way tests are written, it's hidden from the user. Example: disassemble.4 If one executes (disassemble-it (eval '(function (lambda (x y) (cons x y))))) as it's written then everything looks ok, but (disassemble (eval '(function (lambda (x y) (cons x y))))) returns the following ; 'jad' is not recognized as an internal or external command, ; operable program or batch file. NIL _________________________________________________________________ Windows Live™ Hotmail®: Search, add, and share the web’s latest sports videos. Check it out. http://www.windowslive.com/Online/Hotmail/Campaign/QuickAdd?ocid=TXT_TAGLM_WL_QA_HM_sports_videos_072009&cat=sports