Bash Script Windows. Wie funktioniert genau DelayedExpansion in if else?

@echo off
setlocal EnableDelayedExpansion
for %%a in ("%~dp0*.cfg") do (  
for /f "tokens=1,* delims=:" %%i in ('findstr /n  $ "%%~nxa"') do @(  
for /L %%a in (1,1,1) do @if %%i==%%a @set ip=%%j
)
for /f "tokens=1,* delims=:" %%i in ('findstr /n  $ "%%~nxa"') do @(  
for /L %%a in (2,1,2) do @if %%i==%%a @set private=%%j
)
for /f "tokens=1,* delims=:" %%i in ('findstr /n  $ "%%~nxa"') do @(  
for /L %%a in (8,1,8) do @if %%i==%%a @set status=%%j
)
for /f "tokens=1,* delims=:" %%i in ('findstr /n  $ "%%~nxa"') do @(  
for /L %%a in (9,1,9) do @if %%i==%%a @set info=%%j
)
if !private:~8!==false (
echo.
echo                                 Name: %%~na [Local Server]
echo                                 Status: !status:~7!
echo                                 IP: !ip:~3!
echo                                 Info: !info:~5!
)
)
....restlicher script...