Dos batch script error? Error occurred while processing: .exe - batch-file

Question

In a DOS script that I wrote, I am unable to figure out what causes this error that I get:
The system cannot find the file specified.
Error occurred while processing: .exe.
Here is the script. Any help would be greatly appreciated. I tried to ask for help on the DosTips forum but I am getting no answer. :
#echo off
:: script to edit property files
CALL :PROPEDIT # Key4 Value446 test.properties
GOTO :END
:PROPEDIT [#] PropKey PropVal File
IF "%~1"=="#" (
:: Passing a first argument of "#" will disable the line while editing
SET "_PREFIX=#"
SHIFT
)
IF NOT "%~4"=="" (
ECHO Too many arguments.
EXIT /B 1
)
IF "%~3"=="" (
ECHO PROPEDIT: Function requires 3 args: [#] PropKey PropVal File
EXIT /B 1
) ELSE (
SET "_PROPKEY=%~1"
SET "_PROPVAL=%~2"
SET "_FILE=%~3"
)
MOVE /Y "%_FILE%" "%_FILE%.bak">nul
FOR /F "USEBACKQ tokens=*" %%A IN (`TYPE "%_FILE%.bak" ^|FINDSTR /N /I "%_PROPKEY%="`) DO (
SET LINE=%%A
)
FOR /F "tokens=1,2* delims=:" %%S IN ("%LINE%") DO SET LINE=%%S
SET /A COUNT=1
FOR /F "USEBACKQ delims=" %%A IN (`TYPE "%_FILE%.bak" ^|FIND /V /N ""`) DO (
SET "LN=%%A"
SETLOCAL ENABLEDELAYEDEXPANSION
SET "LN=!LN:*]=!"
IF "!COUNT!" NEQ "%LINE%" (
ECHO(!LN!>>%_FILE%
) ELSE (
ECHO %_PREFIX%%_PROPKEY%=%_PROPVAL%>>%_FILE%
ECHO Updated '%_FILE%' with value '%_PREFIX%%_PROPKEY%=%_PROPVAL%'.
)
ENDLOCAL
SET /A COUNT+=1
)
EXIT /B 0
:END
ECHO --- Finished Test ---
pause

Answer 1

Remove the .EXE of FIND and TYPE
You don't need TYPE. You can do just this:
FOR /F "tokens=*" %%A IN (`FIND /N /I "%_PROPKEY%=" "%_FILE%.bak"`) DO (
If FIND spoils your results (by not using TYPE) then consider using FINDSTR instead and use 'DELIMS=:' instead of 'DELIMS=]'
If I'm right my assumption that the following is helpful, take a look at the 'MORE +nnn' command (note the '+nnn' which outputs lines from a specific location in the file).
Why not just place your 'SETLOCAL ENABLE.. etc' at the top of your code?
If you explain what it is you're trying to attempt, then I might be in a better position to help.
Just a few thoughts :)

Answer 2

Here is the working code after getting some help from Paul Tomasi:
#echo off
SETLOCAL DISABLEDELAYEDEXPANSION
CALL :PROPEDIT # Key4 Value446 test.properties
GOTO :END
:PROPEDIT [#] PropKey PropVal File
IF "%~1"=="#" (
:: Passing a first argument of "#" will disable the line while editing
SET "_PREFIX=#"
SHIFT
)
IF NOT "%~4"=="" (
ECHO Too many arguments.
EXIT /B 1
)
IF "%~3"=="" (
ECHO PROPEDIT: Function requires 3 args: [#] PropKey PropVal File
EXIT /B 1
) ELSE (
SET "_PROPKEY=%~1"
SET "_PROPVAL=%~2"
SET "_FILE=%~3"
)
MOVE /Y "%_FILE%" "%_FILE%.bak">nul
FOR /F "USEBACKQ tokens=*" %%A IN (`TYPE "%_FILE%.bak" ^|FINDSTR /N /I "%_PROPKEY%="`) DO (
SET LINE=%%A
)
FOR /F "tokens=1,2* delims=:" %%S IN ("%LINE%") DO SET LINE=%%S
SET /A COUNT=1
FOR /F "USEBACKQ delims=" %%A IN (`TYPE "%_FILE%.bak" ^|FIND /V /N ""`) DO (
SET "LN=%%A"
SETLOCAL ENABLEDELAYEDEXPANSION
SET "LN=!LN:*]=!"
IF "!COUNT!" NEQ "%LINE%" (
ECHO(!LN!>>%_FILE%
) ELSE (
ECHO %_PREFIX%%_PROPKEY%=%_PROPVAL%>>%_FILE%
ECHO Updated '%_FILE%' with value '%_PREFIX%%_PROPKEY%=%_PROPVAL%'.
)
SETLOCAL DISABLEDELAYEDEXPANSION
SET /A COUNT+=1
)
EXIT /B 0
:END
ECHO --- Finished Test ---
pause