diff --git a/bat/ASM.BAT b/bat/ASM.BAT
index af539438..edaf9dde 100644
--- a/bat/ASM.BAT
+++ b/bat/ASM.BAT
@@ -1,5 +1,5 @@
 @if /I "%1" == "tron" (echo on) else (echo off)
-rem asm run macro assembly to generate relocatable obj from mlc source 
+rem asm run macro assembly to generate relocatable obj from MLC source 
 
 setlocal
 if /I "%1" == "tron" (set z_TraceMode=tron
@@ -11,7 +11,7 @@ if /I "%1" == "tron" (set z_TraceMode=tron
 set /A z_NestLevel=%z_NestLevel%+1
 rem ----- Lvl(%z_NestLevel%) Start %0 %1 %2 %3 %4 %5 %6 %7 %8 %9
 
-if /I %1. == . (set /P z_file=Hit Enter for help or supply name of mlc file to assemble: 
+if /I %1. == . (set /P z_file=Hit Enter for help or supply name of MLC file to assemble: 
         ) else (set z_file=%1)
 if /I %z_file%. == . goto help
 :chkfile
@@ -22,8 +22,8 @@ set z_file=%z_fdrv%%z_fpath%%z_fname%
 if exist %z_file%%z_fext% goto file_ok
 rem if extension specified: error because no default applies
 if /I %z_fext%. NEQ . goto notfound
-rem try with default extension of mlc
-set z_fext=.mlc
+rem try with default extension of MLC
+set z_fext=.MLC
 if exist %z_file%%z_fext% goto file_ok
 :notfound
 echo Error: Source file %z_file%%z_fext% does not exist
diff --git a/bat/ASML.BAT b/bat/ASML.BAT
index a89d56b8..912088ba 100644
--- a/bat/ASML.BAT
+++ b/bat/ASML.BAT
@@ -1,5 +1,5 @@
 @if /I "%1" == "tron" (echo on) else (echo off)
-rem asml assemble and link to generate load module 390 from mlc
+rem asml assemble and link to generate load module 390 from MLC
 
 setlocal
 if /I "%1" == "tron" (set z_TraceMode=tron
@@ -11,7 +11,7 @@ if /I "%1" == "tron" (set z_TraceMode=tron
 set /A z_NestLevel=%z_NestLevel%+1
 rem ----- Lvl(%z_NestLevel%) Start %0 %1 %2 %3 %4 %5 %6 %7 %8 %9
 
-if /I %1. == . (set /P z_file=Hit Enter for help or supply name of mlc file to assemble and link: 
+if /I %1. == . (set /P z_file=Hit Enter for help or supply name of MLC file to assemble and link: 
         ) else (set z_file=%1)
 if /I %z_file%. == . goto help
 :chkfile
@@ -22,8 +22,8 @@ set z_file=%z_fdrv%%z_fpath%%z_fname%
 if exist %z_file%%z_fext% goto file_ok
 rem if extension specified: error because no default applies
 if /I %z_fext%. NEQ . goto notfound
-rem try with default extension of mlc
-set z_fext=.mlc
+rem try with default extension of MLC
+set z_fext=.MLC
 if exist %z_file%%z_fext% goto file_ok
 :notfound
 echo Error: Source file %z_file%%z_fext% does not exist
@@ -66,7 +66,7 @@ echo the ASML.BAT procedure is intended to assemble and link a single assembler
 echo .
 :retry
 set z_file=
-set /P z_file=Hit Enter for more help or supply name of mlc file to assemble and link: 
+set /P z_file=Hit Enter for more help or supply name of MLC file to assemble and link: 
 if /I %z_file%. NEQ . goto chkfile
 
 call %~dps0help %z_TraceMode%
diff --git a/bat/ASMLG.BAT b/bat/ASMLG.BAT
index ed03a2c0..09d760f9 100644
--- a/bat/ASMLG.BAT
+++ b/bat/ASMLG.BAT
@@ -1,5 +1,5 @@
 @if /I "%1" == "tron" (echo on) else (echo off)
-rem asmlg assemble, link, and go from mlc to 390 execution
+rem asmlg assemble, link, and go from MLC to 390 execution
 
 setlocal
 if /I "%1" == "tron" (set z_TraceMode=tron
@@ -11,7 +11,7 @@ if /I "%1" == "tron" (set z_TraceMode=tron
 set /A z_NestLevel=%z_NestLevel%+1
 rem ----- Lvl(%z_NestLevel%) Start %0 %1 %2 %3 %4 %5 %6 %7 %8 %9
 
-if /I %1. == . (set /P z_file=Hit Enter for help or supply name of mlc file to assemble, link, and execute: 
+if /I %1. == . (set /P z_file=Hit Enter for help or supply name of MLC file to assemble, link, and execute: 
         ) else (set z_file=%1)
 if /I %z_file%. == . goto help
 :chkfile
@@ -22,8 +22,8 @@ set z_file=%z_fdrv%%z_fpath%%z_fname%
 if exist %z_file%%z_fext% goto file_ok
 rem if extension specified: error because no default applies
 if /I %z_fext%. NEQ . goto notfound
-rem try with default extension of mlc
-set z_fext=.mlc
+rem try with default extension of MLC
+set z_fext=.MLC
 if exist %z_file%%z_fext% goto file_ok
 :notfound
 echo Error: Source file %z_file%%z_fext% does not exist
@@ -70,7 +70,7 @@ echo the ASMLG.BAT procedure is intended to assemble, link, and execute a single
 echo .
 :retry
 set z_file=
-set /P z_file=Hit Enter for more help or supply name of mlc file to assemble, link, and execute: 
+set /P z_file=Hit Enter for more help or supply name of MLC file to assemble, link, and execute: 
 if /I %z_file%. NEQ . goto chkfile
 
 call %~dps0help %z_TraceMode%
diff --git a/bat/ASSIST.BAT b/bat/ASSIST.BAT
index b538343e..55ce1a52 100644
--- a/bat/ASSIST.BAT
+++ b/bat/ASSIST.BAT
@@ -11,7 +11,7 @@ if /I "%1" == "tron" (set z_TraceMode=tron
 set /A z_NestLevel=%z_NestLevel%+1
 rem ----- Lvl(%z_NestLevel%) Start %0 %1 %2 %3 %4 %5 %6 %7 %8 %9
 
-if /I %1. == . (set /P z_file=Hit Enter for help or supply name of mlc file to assemble, link, and execute: 
+if /I %1. == . (set /P z_file=Hit Enter for help or supply name of MLC file to assemble, link, and execute: 
         ) else (set z_file=%1)
 if /I %z_file%. == . goto help
 :chkfile
@@ -22,8 +22,8 @@ set z_file=%z_fdrv%%z_fpath%%z_fname%
 if exist %z_file%%z_fext% goto file_ok
 rem if extension specified: error because no default applies
 if /I %z_fext%. NEQ . goto notfound
-rem try with default extension of mlc
-set z_fext=.mlc
+rem try with default extension of MLC
+set z_fext=.MLC
 if exist %z_file%%z_fext% goto file_ok
 :notfound
 echo Error: Source file %z_file%%z_fext% does not exist
@@ -49,7 +49,7 @@ echo the ASSIST.BAT procedure is intended to assemble, link, and execute a singl
 echo .
 :retry
 set z_file=
-set /P z_file=Hit Enter for more help or supply name of mlc file to assemble, link, and execute: 
+set /P z_file=Hit Enter for more help or supply name of MLC file to assemble, link, and execute: 
 if /I %z_file%. NEQ . goto chkfile
 
 call %~dps0help %z_TraceMode%
diff --git a/bat/FPARTS.BAT b/bat/FPARTS.BAT
index ebaa007b..ead476a3 100644
--- a/bat/FPARTS.BAT
+++ b/bat/FPARTS.BAT
@@ -12,6 +12,8 @@ set /A z_NestLevel=%z_NestLevel%+1
 rem ----- Lvl(%z_NestLevel%) Start %0 %1 %2 %3 %4 %5 %6 %7 %8 %9
 
 set z_ReturnCode=0
+if "%1" == "/?" goto help
+if "%1" ==  "?" goto help
 if not exist %1 set z_ReturnCode=8
 
 set z_fdrv=%~d1
diff --git a/bat/MAC.BAT b/bat/MAC.BAT
index a7d9df37..f5b14160 100644
--- a/bat/MAC.BAT
+++ b/bat/MAC.BAT
@@ -1,5 +1,5 @@
 @if /I "%1" == "tron" (echo on) else (echo off)
-rem mac run mz390 macro processor to expand mlc to bal with nomlc
+rem mac run mz390 macro processor to expand MLC to BAL using option nomlc
 
 setlocal
 if /I "%1" == "tron" (set z_TraceMode=tron
@@ -11,7 +11,7 @@ if /I "%1" == "tron" (set z_TraceMode=tron
 set /A z_NestLevel=%z_NestLevel%+1
 rem ----- Lvl(%z_NestLevel%) Start %0 %1 %2 %3 %4 %5 %6 %7 %8 %9
 
-if /I %1. == . (set /P z_file=Hit Enter for help or supply name of mlc file to expand: 
+if /I %1. == . (set /P z_file=Hit Enter for help or supply name of MLC file to expand: 
         ) else (set z_file=%1)
 if /I %z_file%. == . goto help
 :chkfile
@@ -22,8 +22,8 @@ set z_file=%z_fdrv%%z_fpath%%z_fname%
 if exist %z_file%%z_fext% goto file_ok
 rem if extension specified: error because no default applies
 if /I %z_fext%. NEQ . goto notfound
-rem try with default extension of mlc
-set z_fext=.mlc
+rem try with default extension of MLC
+set z_fext=.MLC
 if exist %z_file%%z_fext% goto file_ok
 :notfound
 echo Error: Source file %z_file%%z_fext% does not exist
@@ -50,7 +50,7 @@ echo the MAC.BAT procedure is intended to expand a single assembler program by r
 echo .
 :retry
 set z_file=
-set /P z_file=Hit Enter for more help or supply name of mlc file to expand: 
+set /P z_file=Hit Enter for more help or supply name of MLC file to expand: 
 if /I %z_file%. NEQ . goto chkfile
 
 call %~dps0help %z_TraceMode%
diff --git a/bat/RUNZSTRMACTEST.BAT b/bat/RUNZSTRMACTEST.BAT
index 19f4e7c7..c60e14ac 100644
--- a/bat/RUNZSTRMACTEST.BAT
+++ b/bat/RUNZSTRMACTEST.BAT
@@ -43,7 +43,7 @@ if %z_ReturnCode% GTR 0 (set z_ReturnCode=8
                          goto return
                          )
 
-echo Regen ZSTRMAC2 using mz390 support to ver zstrmac2.txt = mlc
+echo Regen ZSTRMAC2 using mz390 support to ver ZSTRMAC2.TXT = MLC
 set SYSUT1=rt\test\ZSTRMAC2.ZSM 
 set SYSUT2=rt\test\ZSTRMAC2.MLC 
 call bat\MZ390      %z_TraceMode% rt\test\ZSTRMAC2.ZSM NOASM NOTIMING STATS || goto error
diff --git a/bat/ZC390.BAT b/bat/ZC390.BAT
index 4845feda..2a98ae1b 100644
--- a/bat/ZC390.BAT
+++ b/bat/ZC390.BAT
@@ -25,11 +25,11 @@ java -classpath %~dps0..\z390.jar -Xrs zc390 %1 %2 %3 %4 %5 %6 %7 %8 %9
 
 set z_ReturnCode=%ERRORLEVEL%
 if %z_ReturnCode% EQU 0  goto return
-if %z_ReturnCode% EQU 4 (echo %0 WARNING: See warnings on zc390 generated mlc file and console
+if %z_ReturnCode% EQU 4 (echo %0 WARNING: See warnings on zc390 generated MLC file and console
                          goto return
                          )
 rem ErrorLevel 1 for Java issues or ErrorLevel 8 / 12 for assembly issues
-echo %0 ERROR: See errors on zc390 generated mlc file and console
+echo %0 ERROR: See errors on zc390 generated MLC file and console
 
 :return
 rem ----- Lvl(%z_NestLevel%)  End %0 %1 %2 %3 %4 %5 %6 %7 %8 %9