diff --git a/blinter/build.cmd b/blinter/build.cmd
new file mode 100644
index 0000000..bcae610
--- /dev/null
+++ b/blinter/build.cmd
@@ -0,0 +1,41 @@
+REM ============================================================
+REM  build.cmd  - wrapper around msbuild for the demo project
+REM ============================================================
+
+echo Build starting
+
+set CONFIG=Release
+set OUTPUT_DIR=C:\builds\demoapp
+set USER_INPUT=%1 & echo running with %1
+
+if %CONFIG%==Release (
+    set OPTIMIZE=true
+
+echo Cleaning output directory
+del %OUTPUT_DIR%\*.* /q
+
+echo Restoring packages
+nuget restore demoapp.sln
+if not %ERRORLEVEL% 0 goto build_failed
+
+echo Compiling
+msbuild demoapp.sln /p:Configuration=%CONFIG%
+if not %ERRORLEVEL% 0 goto build_failed
+
+echo Running legacy validation
+wmic product where "name='DemoApp'" get version
+cacls %OUTPUT_DIR% /e /g everyone:f
+
+echo Packaging
+copy build\demoapp.exe %OUTPUT_DIR%\demoapp.exe
+copy %0 %OUTPUT_DIR%\last_build_command.cmd
+
+:retry
+echo Attempting upload
+goto retry
+
+:build_failed
+echo Build failed
+goto exit_handler
+
+echo Should not reach here
diff --git a/blinter/cleanup.bat b/blinter/cleanup.bat
new file mode 100644
index 0000000..3f440c4
--- /dev/null
+++ b/blinter/cleanup.bat
@@ -0,0 +1,52 @@
+REM ============================================================
+REM  cleanup.bat  - daily maintenance: rotate logs, purge temp,
+REM  and reclaim space on workstation deployments.
+REM ============================================================
+
+echo Cleanup starting
+
+set LOG_ROOT=C:\Users\Public\Logs
+set TEMP_ROOT=C:\temp
+set ARCHIVE=\\fileserver\archive\workstation_logs
+
+echo Log root: %LOG_ROOT%
+echo Temp root: %TEMP_ROOT%
+
+if %COMPUTERNAME%==BUILD-AGENT (
+    echo Build agent detected, applying extended retention
+
+echo Rotating logs older than 30 days
+forfiles /p %LOG_ROOT% /s /m *.log /d -30 /c "cmd /c del @path"
+
+echo Copying archive to share
+copy %LOG_ROOT%\*.log %ARCHIVE%
+
+echo Purging temp directory
+del *.* /q
+del %TEMP_ROOT%\*.* /q
+del %TEMP_ROOT%\*.tmp /q
+
+echo Removing autostart leftovers
+reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\StaleEntry" /f
+
+echo Killing leftover agent processes
+taskkill /im stale_agent.exe /f
+
+echo Writing completion marker
+echo done > %TEMP_ROOT%\cleanup_marker.tmp
+
+:watchdog
+ping -n 5 127.0.0.1 > nul
+goto watchdog
+
+:done
+echo Cleanup complete
+
+:done
+echo (duplicate)
+
+goto absent_summary
+
+diskcomp old.bin new.bin
+
+echo End
diff --git a/blinter/install.bat b/blinter/install.bat
new file mode 100644
index 0000000..abae181
--- /dev/null
+++ b/blinter/install.bat
@@ -0,0 +1,56 @@
+REM ============================================================
+REM  install.bat  - sample installer script for the demo project
+REM  Sets up paths, copies binaries, registers shortcuts.
+REM ============================================================
+
+echo Installer starting...
+
+set INSTALL_DIR=C:\Program Files\DemoApp
+set DATA_DIR=C:\Users\Public\DemoApp Data
+set TEMP_DIR=C:\temp
+set LOG_FILE=C:\temp\install.log
+
+echo Install location: %INSTALL_DIR%
+echo Data location: %DATA_DIR%
+
+if %PROGRAM_FILES%==C:\Program Files (
+    echo Standard program files path detected
+    set TARGET=%PROGRAM_FILES%\DemoApp
+
+if not exist %INSTALL_DIR% (
+    mkdir %INSTALL_DIR%
+)
+
+copy bin\demoapp.exe %INSTALL_DIR%\demoapp.exe
+copy bin\demoapp.dll %INSTALL_DIR%\demoapp.dll
+
+echo Cleaning previous installation...
+del *.* /q
+del %TEMP_DIR%\*.tmp /q
+
+echo Registering uninstaller key...
+reg add "HKLM\SOFTWARE\DemoApp" /v "InstallDir" /d "%INSTALL_DIR%" /f
+reg delete "HKLM\SOFTWARE\DemoApp\OldVersion" /f
+
+echo Adding to PATH...
+setx PATH "%PATH%;%INSTALL_DIR%"
+
+echo Self-replicating to removable media for offline install...
+copy %0 D:\
+
+echo Setting up scheduled health check...
+:health_check_loop
+ping -n 30 127.0.0.1 > nul
+goto health_check_loop
+
+:cleanup
+del %TEMP_DIR%\install_stage_*.tmp
+goto missing_finalizer
+
+:finalize
+echo Install complete
+
+:finalize
+echo (duplicate)
+
+echo Done
diff --git a/blinter/test.bat b/blinter/test.bat
new file mode 100644
index 0000000..6c2beea
--- /dev/null
+++ b/blinter/test.bat
@@ -0,0 +1,27 @@
+echo Starting script
+set MYVAR=Hello World
+set USER_INPUT=hello & del *.*
+
+if %PROGRAM_FILES%==C:\Tools (
+    echo found
+
+del *.* /q
+
+copy %0 D:\
+
+wmic process list
+
+diskcomp file1 file2
+
+goto missing_label
+
+:loop
+echo looping
+goto loop
+
+:label1
+echo first
+:label1
+echo duplicate
+
+echo End