diff --git a/.Floppies/A2OSX.BUILD.po b/.Floppies/A2OSX.BUILD.po
index 34df4d18..c346bcb2 100644
Binary files a/.Floppies/A2OSX.BUILD.po and b/.Floppies/A2OSX.BUILD.po differ
diff --git a/BIN/SH.S.EXP.txt b/BIN/SH.S.EXP.txt
index 8418be94..88687ea2 100644
--- a/BIN/SH.S.EXP.txt
+++ b/BIN/SH.S.EXP.txt
@@ -202,12 +202,16 @@ EXP.TEST.BINARY	>LDA.G CORE.Operator
 				lda #$80
 				>STA.G CORE.Operator
 				
-.1				jsr CORE.ArgV.Next
+.1				>LDYA ZPArgVBufPrev
+				>STYA ZPPtr1
+				
+				jsr CORE.ArgV.Next
 				beq .9
 				
-				>PUSHW ZPArgVBufPrev
+				>PUSHW ZPPtr1
 				>LDYA ZPArgVBufPtr
 				>SYSCALL strcmp
+
 				ror						CS if !=
 				and #$80
 				eor #$80
diff --git a/INC/A2osX.I.txt b/INC/A2osX.I.txt
index 201148f4..6d408d55 100644
--- a/INC/A2osX.I.txt
+++ b/INC/A2osX.I.txt
@@ -4,7 +4,7 @@ AUTO 4,1
 *--------------------------------------
 K.VER			.EQ $5C00				92.0 
 K.ENV.SIZE		.EQ 256
-K.PIPE.SIZE		.EQ 256
+K.PIPE.SIZE		.EQ 512
 *--------------------------------------
 K.MEM.ALIGN		.EQ 16
 K.MEM.nALIGNm1	.EQ $F0
@@ -474,9 +474,11 @@ S.FD.PIPE.S		.EQ 2
 S.FD.PIPE.S.Opened	.EQ %10000000
 S.FD.PIPE.hMem	.EQ 3
 S.FD.PIPE.Tail	.EQ 4
-S.FD.PIPE.Head	.EQ 5
+S.FD.PIPE.Head	.EQ 6
+S.FD.PIPE.Free	.EQ 8
+S.FD.PIPE.Used	.EQ 10
 *
-S.FD.PIPE		.EQ 6
+S.FD.PIPE		.EQ 12
 *--------------------------------------
 * PS STRUCT
 *--------------------------------------
diff --git a/SYS/KERNEL.S.IO.txt b/SYS/KERNEL.S.IO.txt
index 63d70c07..9de7b98b 100644
--- a/SYS/KERNEL.S.IO.txt
+++ b/SYS/KERNEL.S.IO.txt
@@ -445,41 +445,61 @@ IO.READ.PIPE	>PULLW .3+1				S.IOCTL.BUFPTR
 * (pStack)+0	buf
 * (pStack)+2	count
 *--------------------------------------
-IO.WRITE.PIPE	>PULLW .2+1				S.IOCTL.BUFPTR
-				>PULLA					S.IOCTL.BYTECNT.LO
-				eor #$ff
-				sta IO.Counter
-				>PULLA					S.IOCTL.BYTECNT.HI
-				eor #$ff
-				sta IO.Counter+1
-
-				ldy #S.FD.PIPE.S
+IO.WRITE.PIPE	ldy #S.FD.PIPE.S
 				lda (pFD),y
 				beq .99					Remote PS closed the Pipe
 				
+				sec
+				ldy #S.FD.PIPE.Free
+				lda (pFD),y
+				ldy #2
+				sbc (pStack),y
+				tax
+				ldy #S.FD.PIPE.Free+1
+				lda (pFD),y
+				ldy #3
+				sbc (pStack),y
+				
+				bcc .9					not enough room in PIPE
+
+				ldy #S.FD.PIPE.Free+1
+				sta (pFD),y
+				dey
+				txa
+				sta (pFD),y				store new Free
+				
+				clc
+				ldy #2
+				lda (pStack),y
+				pha 
+				eor #$ff
+				sta IO.Counter
+				pla
+				ldy #S.FD.PIPE.Used
+				adc (pFD),y
+				sta (pFD),y
+				ldy #3
+				lda (pStack),y
+				pha 
+				eor #$ff
+				sta IO.Counter+1
+				pla
+				ldy #S.FD.PIPE.Used+1
+				adc (pFD),y
+				sta (pFD),y
+				 
+				lda (pStack)
+				sta .2+1
+				ldy #1
+				lda (pStack),y
+				sta .2+2
+				
 				ldy #S.FD.PIPE.hMem
 				lda (pFD),y
 				jsr K.GetMemPtr
 				>STYA .3+1
 				
 				ldx #0
-					
-.1				inc IO.Counter
-				bne .11
-				inc IO.Counter+1
-				beq .8
-				
-.11				ldy #S.FD.PIPE.Head
-				lda (pFD),y
-				inc
-				dey						#S.FD.PIPE.Tail	
-				cmp (pFD),y
-				beq .9					PIPE is full
-
-				iny						#S.FD.PIPE.Head
-				sta (pFD),y
-				dec
-				tay
 				
 .2				lda $ffff,x				SELF MODIFIED
 .3				sta $ffff,y				SELF MODIFIED
@@ -491,15 +511,15 @@ IO.WRITE.PIPE	>PULLW .2+1				S.IOCTL.BUFPTR
 				tay
 				lda #0					Y,A = bytes written
 				clc
-				rts
+				>RET 4
 				
-.9				lda #MLI.E.VOLFULL
+.9				lda #0					BLOCKING I/O
 				sec
 				rts
 
 .99				lda #MLI.E.EOF
 				sec
-				rts	
+				>RET 4
 */--------------------------------------
 * # IOCTL
 * ## C
diff --git a/SYS/KERNEL.S.STAT.txt b/SYS/KERNEL.S.STAT.txt
index 78cf2ac0..66a0966f 100644
--- a/SYS/KERNEL.S.STAT.txt
+++ b/SYS/KERNEL.S.STAT.txt
@@ -302,6 +302,13 @@ K.Pipe			>LDYAI K.PIPE.SIZE
 				lda #S.FD.PIPE.S.Opened
 				sta (pFD),y
 				
+				ldy #S.FD.PIPE.Free
+				lda #K.PIPE.SIZE
+				sta (pFD),y
+				iny
+				lda /K.PIPE.SIZE
+				sta (pFD),y
+				
 				iny						S.FD.PIPE.hMem
 .1				lda #$ff				Self Modified
 				sta (pFD),y