HTML Executable now properly reads BOM to detect specific encoding before parsing files.This event occurs when a new version is detected by the web update feature at publication startup. New HEScript event in UserMain script: OnWebUpdateNewVersionFound.More operations of HTML Executable (such as external file encryption.) are now multi-threaded, HTML Executable does not appear stuck anymore.Only for PDF files displayed with the built-in PDF viewer. Forbid virtual printers for PDF files: HTML Executable detects almost all PDF virtual printers, so that you can forbid them while still allowing real printers.Faster compression method for more responsive ebooks.Improvements for Windows 10 April 2018 update.