Switch Between DayZ Experimental and Stable Builds

DayZ.bat

::User Set Variables

::Steam Install Directory (Steam.exe)
@set SteamDIR=C:\Program Files (x86)\Steam
::Steam Library Directory (~\common\DayZ) [Drive must have NTFS format]
@set SteamLIB=C:\Program Files (x86)\Steam
::DayZ Stable Folder Name in ~\SteamApps\common\
@set Stable=DayZ_stable
::DayZ Experimental Folder Name in ~\SteamApps\common\
@set Experimental=DayZ_experimental


::DO NOT EDIT PAST THIS POINT
::Batch Made by Au1st3in
@setlocal enableextensions enabledelayedexpansion
@echo off

@set DayZ=DayZ

color 0f
goto admin
:continue

set common=!SteamLIB!\SteamApps\common\
cd %common%

if NOT EXIST "!DayZ!\enabled.txt" (
	if NOT EXIST "!Stable!" (
		if NOT EXIST "!Experimental!" (
			mkdir "!Stable!"
			mkdir "!Experimental!"
			xcopy /s/e /h /k /y "!DayZ!" "!Stable!"
			xcopy /s/e /h /k /y "!DayZ!" "!Experimental!"
			rd /s /q "!DayZ!"
			cls
		)
	)
)

rmdir !DayZ!

attrib -h "!Stable!\enabled.txt"
attrib -h "!Experimental!\enabled.txt"

if NOT EXIST !Experimental!\experimental.txt (
	if NOT EXIST !Stable!\stable.txt (
		break>"!Stable!\enabled.txt"
		del "!Experimental!\enabled.txt"
		mklink /D "%CD%\!DayZ!" "%CD%\!Stable!"
		if EXIST !Stable!\enabled.txt (
			attrib +h "!Stable!\enabled.txt"
		)
		set branch=Stable
		goto steam
	)
)

if NOT EXIST !Experimental!\experimental.txt (
	break>"!Experimental!\experimental.txt"
)
if EXIST !Experimental!\experimental.txt (
	attrib +r "!Experimental!\experimental.txt"
)
if NOT EXIST !Stable!\stable.txt (
	break>"!Stable!\stable.txt"
)
if EXIST !Stable!\stable.txt (
	attrib +r "!Stable!\stable.txt"
)

if EXIST !Experimental!\enabled.txt (
	break>"!Stable!\enabled.txt"
	del "!Experimental!\enabled.txt"
	mklink /D "%CD%\!DayZ!" "%CD%\!Stable!"
	if EXIST !Stable!\enabled.txt (
		attrib +h "!Stable!\enabled.txt"
	)
	set branch=Stable
	set beta=NONE - Opt out of all beta programs
	set app_update="!SteamDIR!\steam.exe" +app_update 221100 +app_update 221100 -clearbeta validate +quit
	goto steam
)
if EXIST !Stable!\enabled.txt (
	break>"!Experimental!\enabled.txt"
	del "!Stable!\enabled.txt"
	mklink /D "%CD%\!DayZ!" "%CD%\!Experimental!"
	if EXIST !Experimental!\enabled.txt (
		attrib +h "!Experimental!\enabled.txt"
	)
	set branch=Experimental
	set beta=experimental - Preview testing version
	set app_update="!SteamDIR!\steam.exe" +app_update 221100 +app_update 221100 -beta experimental validate +quit
	goto steam
)

:steam
cls

echo DayZ !branch!
echo -----------------------------------------
echo Stable : !Stable!
echo Experimental : !Experimental!
echo -----------------------------------------
echo Beta : [!beta!]
echo -----------------------------------------

pause
exit


:admin

net session >nul 2>&1
if %errorLevel% == 0 (
    goto continue
) else (
	echo -------------------------------------
	echo  Administrative Privileges Required
	echo        RUN AS ADMINISTRATOR
	echo -------------------------------------
	pause
	exit
)
pause >nul

For some reason it managed to copy all the files into Stable and Experimental direcotries, but did not generate all of the hidden stable/experimental txt files to swap properly, only an enable.txt in the Stable branch.. Fixed manually. enable.txt toggles between directories properly now.

But the 'app_update' is apparently not updating Steam properly when attempting to swap.
Steam remains in stable branch after script transition to Experimental.