Thanks! Just what I needed.
> There is indeed a simple solution. Download the XyWrite 4 Service Pack
> (https://www.lexitec.fi/xywrite/vDosPlus503_SP_Setup.zip). Run the
> installer. Select the code page (CP437 US or CP850 Latin-1) and other
> options you want. You will get a working installation. Just doubleclick
> the icon on your desktop after installation.
>
> Best regards,
>
> Kari Eveli
> LEXITEC Book Publishing (Finland)
> lexitec@xxxxxxxxxx