Details:

CL-USER> (quicklisp-quickstart:install)
; Loading D:\Documents and Settings\nakra\quicklisp\setup.lisp

Illegal keyword given: :EXTERNAL-FORMAT.
   [Condition of type PROGRAM-ERROR]

Restarts:
 0: [RETRY] Retry compiling #<CL-SOURCE-FILE "quicklisp" "package">.
 1: [ACCEPT] Continue, treating compiling #<CL-SOURCE-FILE "quicklisp" "package"> as having been successful.
 2: [RETRY] retry the load of D:\Documents and Settings\nakra\quicklisp\setup.lisp
 3: [SKIP] skip loading D:\Documents and Settings\nakra\quicklisp\setup.lisp
 4: [RECOMPILE-DUE-TO-INCOMPATIBLE-FASL] recompile D:\Documents and Settings\nakra\quicklisp\setup.lisp
 5: [RETRY] Retry SLIME REPL evaluation request.
 --more--

Backtrace:
  0: (ERROR PROGRAM-ERROR :FORMAT-CONTROL "Illegal keyword given: ~s." :FORMAT-ARGUMENTS (:EXTERNAL-FORMAT))
  1: (COMPILE-FILE-PATHNAME "x.lisp" ..)
  2: (ASDF:COMPILE-FILE-PATHNAME* #P"D:\\Documents and Settings\\nakra\\quicklisp\\quicklisp\\package.lisp" :OUTPUT-FILE ..)
  3: (ASDF:COMPILE-FILE* #P"D:\\Documents and Settings\\nakra\\quicklisp\\quicklisp\\package.lisp" :OUTPUT-FILE ..)
  4: ((:INTERNAL (METHOD ASDF:PERFORM (ASDF:COMPILE-OP ASDF:CL-SOURCE-FILE)) 0))
  5: ((METHOD ASDF::CALL-WITH-AROUND-COMPILE-HOOK (ASDF:COMPONENT T)) #<ASDF:CL-SOURCE-FILE "quicklisp" "package"> #<Closure (:INTERNAL (METHOD ASDF:PERFORM #) 0) @ #x2143fc7a>)
  6: ((METHOD ASDF:PERFORM (ASDF:COMPILE-OP ASDF:CL-SOURCE-FILE)) #<ASDF:COMPILE-OP (:VERBOSE NIL) @ #x213d60c2> #<ASDF:CL-SOURCE-FILE "quicklisp" "package">)
  7: ((:INTERNAL (:EFFECTIVE-METHOD 2 NIL NIL NIL NIL) 0) #<ASDF:COMPILE-OP (:VERBOSE NIL) @ #x213d60c2> #<ASDF:CL-SOURCE-FILE "quicklisp" "package">)
  8: ((METHOD ASDF::PERFORM-WITH-RESTARTS (T T)) #<ASDF:COMPILE-OP (:VERBOSE NIL) @ #x213d60c2> #<ASDF:CL-SOURCE-FILE "quicklisp" "package">)
  9: ((METHOD ASDF::PERFORM-WITH-RESTARTS :AROUND (T T)) #<ASDF:COMPILE-OP (:VERBOSE NIL) @ #x213d60c2> #<ASDF:CL-SOURCE-FILE "quicklisp" "package">)
 10: ((:INTERNAL (:EFFECTIVE-METHOD 2 NIL NIL T T) 0) #<ASDF:COMPILE-OP (:VERBOSE NIL) @ #x213d60c2> #<ASDF:CL-SOURCE-FILE "quicklisp" "package">)
 11: ((FLET (METHOD ASDF::PERFORM-PLAN (LIST)) EXCL::CONTINUATION))
 12: ((METHOD ASDF::PERFORM-PLAN (LIST)) ..)
 13: ((:INTERNAL (:EFFECTIVE-METHOD 1 T T NIL NIL) 0) ..)
 14: ((:INTERNAL (METHOD ASDF:OPERATE (T T)) 0))
 15: (ASDF::CALL-WITH-SYSTEM-DEFINITIONS #<Closure (:INTERNAL (METHOD ASDF:OPERATE #) 0) [LOAD-OP] @ #x213d36da>)
 16: ((METHOD ASDF:OPERATE (T T)) ASDF:LOAD-OP "quicklisp" :VERBOSE NIL)
 17: ((:INTERNAL (:EFFECTIVE-METHOD 2 T NIL NIL NIL) 0) ASDF:LOAD-OP "quicklisp" . 1)
 18: (ASDF:OOS ASDF:LOAD-OP "quicklisp" :VERBOSE NIL)
 19: (LET ((*COMPILE-PRINT* NIL) (*COMPILE-VERBOSE* NIL) (*LOAD-VERBOSE* NIL) (*LOAD-PRINT* NIL)) (ASDF:OOS 'ASDF:LOAD-OP "quicklisp" :VERBOSE NIL))
 --more--