BUG: Wix treats js file as wxs file

[BryanCrotaz]

Following the guides here https://stackoverflow.com/questions/471424/wix-tricks-and-tips?rq=1

I'm creating a custom action in JS (all it's doing is fetching a file, passing a key from a ui edit box in the query string) so js is perfect.

Build fails, trying to parse the js file as xml.

Severity	Code	Description	Project	File	Line	Suppression State
Error	WIX0104	Not a valid source file; detail: Data at the root level is invalid. Line 1, position 1.	AgentSetupWix4	H:\Projects\Client2\Client\AgentSetupWix4\LicenceActionCode.js	1	

LicenceAction.wxs

<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs">
	<Fragment>
		<Binary Id="LicenceActionJS" SourceFile="LicenceActionCode.js" />

		<CustomAction Id="CA.LicenceAction"
					BinaryRef="LicenceActionJS"
					JScriptCall="Execute"
					Execute="immediate"
					Return="check" />

		<InstallExecuteSequence>
			<Custom Action="CA.LicenceAction" After="InstallFiles" />
		</InstallExecuteSequence>
	</Fragment>
</Wix>

LicenceActionCode.js

//
// CustomActions.js
//
// Template for WIX Custom Actions written in Javascript.
//
//
// Mon, 23 Nov 2009  10:54
//
// ===================================================================


// http://msdn.microsoft.com/en-us/library/sfw6660x(VS.85).aspx
var Buttons = {
	OkOnly: 0,
	OkCancel: 1,
	AbortRetryIgnore: 2,
	YesNoCancel: 3
};

var Icons = {
	Critical: 16,
	Question: 32,
	Exclamation: 48,
	Information: 64
};

var MsgKind = {
	Error: 0x01000000,
	Warning: 0x02000000,
	User: 0x03000000,
	Log: 0x04000000
};

// http://msdn.microsoft.com/en-us/library/aa371254(VS.85).aspx
var MsiActionStatus = {
	None: 0,
	Ok: 1, // success
	Cancel: 2,
	Abort: 3,
	Retry: 4, // aka suspend?
	Ignore: 5  // skip remaining actions; this is not an error.
};


function Execute() {
	try {
		LogMessage("Hello from MyCustomActionInJavascript");
		// ...do work here...
		LogMessage("Goodbye from MyCustomActionInJavascript");
	}
	catch (exc1) {
		Session.Property("CA_EXCEPTION") = exc1.message;
		LogException(exc1);
		return MsiActionStatus.Abort;
	}
	return MsiActionStatus.Ok;
}

// Pop a message box.  also spool a message into the MSI log, if it is enabled.
function LogException(exc) {
	var record = Session.Installer.CreateRecord(0);
	record.StringData(0) = "CustomAction: Exception: 0x" + decimalToHexString(exc.number) + " : " + exc.message;
	Session.Message(MsgKind.Error + Icons.Critical + Buttons.btnOkOnly, record);
}


// spool an informational message into the MSI log, if it is enabled.
function LogMessage(msg) {
	var record = Session.Installer.CreateRecord(0);
	record.StringData(0) = "CustomAction:: " + msg;
	Session.Message(MsgKind.Log, record);
}


// http://msdn.microsoft.com/en-us/library/d5fk67ky(VS.85).aspx
var WindowStyle = {
	Hidden: 0,
	Minimized: 1,
	Maximized: 2
};

// http://msdn.microsoft.com/en-us/library/314cz14s(v=VS.85).aspx
var OpenMode = {
	ForReading: 1,
	ForWriting: 2,
	ForAppending: 8
};

// http://msdn.microsoft.com/en-us/library/a72y2t1c(v=VS.85).aspx
var SpecialFolders = {
	WindowsFolder: 0,
	SystemFolder: 1,
	TemporaryFolder: 2
};