diff --git a/src/mli.a b/src/mli.a
index 6dec565..c3e7aa9 100755
--- a/src/mli.a
+++ b/src/mli.a
@@ -3,9 +3,9 @@ CMD_CREATE =   $C0        ; create new file
 CMD_DESTROY =  $C1        ; delete a file
 CMD_GETFILEINFO = $C4     ; get file (or volume) info
 CMD_ONLINE =   $C5        ; check online volume(s)
-CMD_SETPREFIX = $C6       ; change default pathname prefix
+;CMD_SETPREFIX = $C6       ; change default pathname prefix
 CMD_OPEN =     $C8        ; open a file
-CMD_NEWLINE =  $C9        ; set line-by-line read mode
+;CMD_NEWLINE =  $C9        ; set line-by-line read mode
 CMD_READ =     $CA        ; read an open file
 CMD_WRITE =    $CB        ; write to an open file
 CMD_CLOSE =    $CC        ; close an open file
@@ -17,9 +17,9 @@ PC_CREATE =    $07
 PC_DESTROY =   $01
 PC_GETFILEINFO = $0A
 PC_ONLINE =    $02
-PC_SETPREFIX = $01
+;PC_SETPREFIX = $01
 PC_OPEN  =     $03
-PC_NEWLINE =   $03
+;PC_NEWLINE =   $03
 PC_READ  =     $04
 PC_WRITE =     $04
 PC_CLOSE =     $01
@@ -229,33 +229,6 @@ OpenFile
          rts
 }
 
-;-------------------------------
-; set line-by-line mode via ProDOS MLI
-;
-; in:  A = file reference number
-; out: if C set, set failed and A contains error code
-;      if S clear, set succeeded and A contains the same
-;        file reference number that was passed in
-;-------------------------------
-lbl_mask =     $7F
-lbl_cr   =     $0D
-
-!zone {
-SetLineByLine
-         sta   mliparam+1 ; store file reference number
-         lda   #lbl_mask  ; accept high bit set or clear
-         sta   mliparam+2
-         lda   #lbl_cr    ; carriage return character
-         sta   mliparam+3
-         lda   #CMD_NEWLINE ; MLI 'newline' command to set read mode
-         ldy   #PC_NEWLINE ; number of parameters for 'newline' command
-         jsr   mli
-         bcs   .setlinebylin
-         lda   mliparam+1 ; if no error, return file reference number
-.setlinebylin
-         rts
-}
-
 ;-------------------------------
 ; read an open file via ProDOS MLI
 ;
@@ -637,20 +610,6 @@ DeleteRAMFile
 }
 
 
-;-------------------------------
-; change current directory (set prefix)
-; using ProDOS MLI
-; in:  caller has filled @mliparam
-;        with address of pathname
-; out: if error, C set and A contains error code
-;      if success, C clear
-;-------------------------------
-SetPrefix
-         lda   #CMD_SETPREFIX
-         ldy   #PC_SETPREFIX
-         jsr   mli
-         rts
-
 ;-------------------------------
 ; get volume name of disk in specific slot+drive
 ; in:  A = unit number (DSSS0000)