I am using the following function to save text to a file (on IE-8 w/ActiveX).

function saveFile(strFullPath, strContent)
{
    var fso = new ActiveXObject( "Scripting.FileSystemObject" );

    var flOutput = fso.CreateTextFile( strFullPath, true ); //true for overwrite
    flOutput.Write( strContent );
    flOutput.Close();
}

The code works fine if the text is fully Latin-9 but when the text contains even a single UTF-8 encoded character, the write fails.

The ActiveX FileSystemObject does not support UTF-8, it seems. I tried UTF-16 encoding the text first but the result was garbled. What is a workaround?