Added etc local profile files.

windows_deliv/install/Admin.txt

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+1.0 ADMIN/NON INTERACTIVE INSTALLATIONS:
+----------------------------------------
+
+If you want to install EiffelStudio/EiffelEnvision in admin mode without any interactions, such
+the case of multiple installations please read the following:
+
+1.1 Installer Properties
+------------------------
+
+1.1.1 Require Properties
+
+There are a number of variables that *have* to be set to install successfully. These are detailed below:
+
+    - C_CONFIG_NAME       : Either "msc" or "msc_vc140", for using a preinstalled Microsoft C/C++ compiler or "mingw" to install and use GCC.
+
+    - PID                 : For Enterprise editions of any installer a personal identifier is require, which is in the form of a CD-KEY for the
+                            installing application. For GPL/Free Trial installations this information is not required.
+
+1.1.2 Optional Properties
+                           
+There are also a number of properties that can be optionally defined, but should be defined for they sake of sanity:
+    
+    - INSTALLDIR          : This is the installed location of the application being installed by the installer and should end in a directory
+                            separator character '\'
+            
+2.0 ADVANCED USER INTERACTION:
+------------------------------
+
+For special purposes it may be necessary to access installer pages that may not be visible during an installation. Below outlines the install
+
+2.1 C/C++ Compiler Configuration
+--------------------------------
+* Setting the property C_CONFIG_CHOOSE=1 via a command line installation will show the C/C++ compiler configuration page.
+
+3.0 END NOTE:
+-------------
+
+All those properties marked with an asterix '*' indicate that the property is only effective for EiffelStudio installations.