I have shce running on my win 8.1 laptop. Running it in DOSBOX. Works perfectly. I had been running it flawlessly on my xp computer for years. You might want to check this link out
http://www.subsowespac.org/the-patro...a-dosbox.shtml I gotta say though Silent Hunter 4 is awesome especially with the Mods on this site and the help from all the good people who post on this site