base64.wsf

<?xml version="1.0" encoding="utf-8"?>
<job>
<object id="dom" progid="Microsoft.XMLDOM"/>
<object id="ado" progid="ADODB.Stream"/>
<reference object="ADODB.Stream"/>
<script language="VBScript"><![CDATA[
Function input_box(ByVal str)
  InputBox "", "", str
End Function
]]></script>
<script language="JScript"><![CDATA[
(function() {
	var path = WSH.arguments(0);
	var extension = (/\.([^\.]+)$/.exec(path) || [])[1];

	ado.open();
	ado.type = adTypeBinary;
	ado.loadFromFile(path);
	var binary = ado.read();
	ado.close();

	var element = dom.createElement('tmp');
	element.dataType = 'bin.base64';
	element.nodeTypedValue = binary;

	input_box([
		'data:',
		'image/', extension, ';',
		'base64,',
		element.text.replace(/\n|\r\n?/g, '')
		].join(''));
})();
]]></script>
</job>