diff --git a/src/0000Boot/0000Kernel.BIN.C b/src/0000Boot/0000Kernel.BIN.C
index a584c51..8575b26 100755
Binary files a/src/0000Boot/0000Kernel.BIN.C and b/src/0000Boot/0000Kernel.BIN.C differ
diff --git a/src/Compiler/Compiler.BIN b/src/Compiler/Compiler.BIN
index a4a7a06..e2f81e9 100755
Binary files a/src/Compiler/Compiler.BIN and b/src/Compiler/Compiler.BIN differ
diff --git a/src/Demo/AcctExample/TOS/TOSDistro.CC b/src/Demo/AcctExample/TOS/TOSDistro.CC
index 7811859..9e14185 100755
--- a/src/Demo/AcctExample/TOS/TOSDistro.CC
+++ b/src/Demo/AcctExample/TOS/TOSDistro.CC
@@ -56,7 +56,7 @@ public U0 TOSPromptAndCopyDrive()
 
 U0 DistroPrep()
 {
-  AOnceFlush; //Don't want in Registry
+  ZOnceFlush; //Don't want in Registry
   OnceFlush;
 
   Del("/Home/Demo*");
diff --git a/src/Demo/OnceDemo.CC b/src/Demo/OnceDemo.CC
index 30cc49b..a39756c 100755
--- a/src/Demo/OnceDemo.CC
+++ b/src/Demo/OnceDemo.CC
@@ -9,4 +9,4 @@ U0 OnceDemo()
 
 OnceDemo;
 
-//There are variants for zenith $LK,"AOnce",A="MN:AOnce"$().
+//There are variants for zenith $LK,"ZOnce",A="MN:ZOnce"$().
diff --git a/src/Doc/Once.DD b/src/Doc/Once.DD
index 97b7dd3..e83069e 100755
--- a/src/Doc/Once.DD
+++ b/src/Doc/Once.DD
@@ -6,9 +6,9 @@ $WW,1$$LK,"KMain",A="MN:KMain"$()
           includes $LK,"~/Once.CC"$
             calls $LK,"OnceExe",A="MN:OnceExe"$().
 
-$LK,"AOnce",A="MN:AOnce"$()	appends src code to $LK,"~/Registry.CC"$ $FG,2$Once/Zenith$FG$ tree, executed at next boot by $FG,2$Zenith$FG$.
+$LK,"ZOnce",A="MN:ZOnce"$()	appends src code to $LK,"~/Registry.CC"$ $FG,2$Once/Zenith$FG$ tree, executed at next boot by $FG,2$Zenith$FG$.
 
 $LK,"Once",A="MN:Once"$()	appends src code to $LK,"~/Registry.CC"$ $FG,2$Once/User$FG$ tree, executed at next boot by first $FG,2$User$FG$ term.
 
-At boot, $LK,"OnceExe",A="MN:OnceExe"$(), executes $FG,2$Once/Zenith$FG$ tree, $LK,"AOnceFlush",A="MN:AOnceFlush"$()s it,
+At boot, $LK,"OnceExe",A="MN:OnceExe"$(), executes $FG,2$Once/Zenith$FG$ tree, $LK,"ZOnceFlush",A="MN:ZOnceFlush"$()s it,
 executes $FG,2$Once/User$FG$ tree and $LK,"OnceFlush",A="MN:OnceFlush"$()s.
diff --git a/src/Doc/Print.DD b/src/Doc/Print.DD
index 4acfde6..2a4b01a 100755
--- a/src/Doc/Print.DD
+++ b/src/Doc/Print.DD
@@ -81,7 +81,7 @@ $LK,"ExePrint",A="MN:ExePrint"$(U8 *format,...) compiles and execute a string.
 
 $LK,"Once",A="MN:Once"$(U8 *format,...) Writes User code to $LK,"Registry",A="FI:~/Registry.CC"$ to be executed next boot.
 
-$LK,"AOnce",A="MN:AOnce"$(U8 *format,...) Writes Zenith code to $LK,"Registry",A="FI:~/Registry.CC"$ to be executed next boot.
+$LK,"ZOnce",A="MN:ZOnce"$(U8 *format,...) Writes Zenith code to $LK,"Registry",A="FI:~/Registry.CC"$ to be executed next boot.
 
 $LK,"InPrint",A="MN:InPrint"$(I64 mS,U8 *format,...) $LK,"PutChars",A="MN:PutChars"$()s one at a time with a delay.
 
diff --git a/src/Kernel.BIN.C b/src/Kernel.BIN.C
index df57217..f0b1cdc 100755
Binary files a/src/Kernel.BIN.C and b/src/Kernel.BIN.C differ
diff --git a/src/Tmp/MyDistro.iso b/src/Tmp/MyDistro.iso
index 343d2d4..0e5afd3 100755
Binary files a/src/Tmp/MyDistro.iso and b/src/Tmp/MyDistro.iso differ
diff --git a/src/Zenith/ZRegistry.CC b/src/Zenith/ZRegistry.CC
index 9a16ee1..7807a25 100755
--- a/src/Zenith/ZRegistry.CC
+++ b/src/Zenith/ZRegistry.CC
@@ -122,8 +122,8 @@ U0 RegInit()
 #help_index "Boot/Once;Registry/Once"
 #help_file "::/Doc/Once"
 
-public U0 AOnceFlush()
-{//Flush AOnce() buf.
+public U0 ZOnceFlush()
+{//Flush ZOnce() buf.
   RegWrite("Once/Zenith","");
 }
 
@@ -132,11 +132,11 @@ public U0 OnceFlush()
   RegWrite("Once/User","");
 }
 
-public U0 AOnce(U8 *format,...)
+public U0 ZOnce(U8 *format,...)
 {//Add Zenith code to $LK,"~/Registry.CC"$, executed next boot.
   U8 *buf=StrPrintJoin(NULL,format,argc,argv);
   if (!Bt(&sys_run_level,RLf_ONCE_ZENITH))
-    AOnceFlush;
+    ZOnceFlush;
   RegAppend("Once/Zenith","%s\n",buf);
   Free(buf);
 }
@@ -150,14 +150,14 @@ public U0 Once(U8 *format,...)
   Free(buf);
 }
 
-public U0 AOnceDrive(U8 drv_let=0,U8 *format,...)
+public U0 ZOnceDrive(U8 drv_let=0,U8 *format,...)
 {//Add Zenith code to drv $LK,"~/Registry.CC"$, executed next boot.
   U8 *buf=StrPrintJoin(NULL,format,argc,argv);
   I64 old_drive_let=*sys_registry_doc->filename.name;
   if (drv_let)
     *sys_registry_doc->filename.name=drv_let;
   if (!Bt(&sys_run_level,RLf_ONCE_ZENITH))
-    AOnceFlush;
+    ZOnceFlush;
   RegAppend("Once/Zenith","%s\n",buf);
   Free(buf);
   *sys_registry_doc->filename.name=old_drive_let;
@@ -183,7 +183,7 @@ public U0 OnceExe()
     RegDefault("Once/Zenith","");
     if (RegCount("Once/Zenith")>2) {
       Zenith("RegExe(\"Once/Zenith\");");
-      AOnceFlush;
+      ZOnceFlush;
     }
     LBts(&sys_run_level,RLf_ONCE_ZENITH);
 
@@ -195,7 +195,7 @@ public U0 OnceExe()
     LBts(&sys_run_level,RLf_ONCE_USER);
 
   } catch {
-    AOnceFlush;
+    ZOnceFlush;
     LBts(&sys_run_level,RLf_ONCE_ZENITH);
     OnceFlush;
     LBts(&sys_run_level,RLf_ONCE_USER);