Add readme

BalExtensionExt.sln

@@ -17,6 +17,8 @@ EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution", "Solution", "{0A4878CF-0180-4A32-9705-7C30DA4463C0}"
 	ProjectSection(SolutionItems) = preProject
 		.gitignore = .gitignore
+		LICENSE.TXT = LICENSE.TXT
+		README.md = README.md
 	EndProjectSection
 EndProject
 Global

README.md

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+# WixBalExtensionExt    
+
+This is a fork of of the [extended WiX bootstrapper Application](https://wixextba.codeplex.com/) that adds options to automatically launch the installed application when running in either passive or quiet modes.
+
+## Features
+
+This version has the following enhancements over the original code:
+
+* Add LaunchPassive flag to automatically launch the installed application when in passive mode.
+* Add LaunchQuiet flag to automatically launch the installed application when in quiet mode.
+
+## Authors
+
+* **Neil Sleightholm** - *Initial work* - https://wixextba.codeplex.com/
+* **Chris Kaczor** - https://github.com/ckaczor - https://chriskaczor.com
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE.md](LICENSE.md) file for details.