AlphaFAX uses a mechanism of embedded control codes for specifying various kinds of special formatting (fonts, bold, etc.) A-Shell/FAX does not support these, but allows you to use the A-Shell GDI printing commands instead. Since the fax device acts more or less just like a Windows raster printer, virtually all of the GDI commands (except color) are operable (e.g. //SETFONT, //MOVETO, //RECTANGLE, //METAFILE, //IMAGE, etc.).