restore support for bundled zip packages

setup-batch/utility scripts/repair_wuaueng.dll.bat

@@ -0,0 +1,51 @@
+@echo off
+title wufuc utility - repair wuaueng.dll
+:: Copyright (C) 2017 zeffy
+
+:: This program is free software: you can redistribute it and/or modify
+:: it under the terms of the GNU General Public License as published by
+:: the Free Software Foundation, either version 3 of the License, or
+:: (at your option) any later version.
+
+:: This program is distributed in the hope that it will be useful,
+:: but WITHOUT ANY WARRANTY; without even the implied warranty of
+:: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+:: GNU General Public License for more details.
+
+:: You should have received a copy of the GNU General Public License
+:: along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+echo Copyright ^(C^) 2017 zeffy
+echo This program comes with ABSOLUTELY NO WARRANTY.
+echo This is free software, and you are welcome to redistribute it
+echo under certain conditions; see COPYING.txt for details.
+echo.
+
+fltmc >nul 2>&1 || (
+    echo This batch script requires administrator privileges. Right-click on
+    echo %~nx0 and select "Run as administrator".
+    goto :die
+)
+
+echo You may want to use this script if you previously modified wuaueng.dll
+echo with "aio-wuaueng.dll-patch.bat" or by other means.
+echo.
+echo This will run the sfc utility and it will restore any changes that were made.
+echo.
+
+set /p CONTINUE=Enter 'Y' if you want to repair wuaueng.dll: 
+if /I not "%CONTINUE%"=="Y" goto :cancel
+
+sfc /SCANFILE="%systemroot%\System32\wuaueng.dll"
+
+:die
+echo.
+echo Press any key to exit...
+pause >nul
+exit
+
+:cancel
+echo.
+echo Canceled by user, press any key to exit...
+pause >nul
+exit