No offense, but your friend is a bit less knowledgeable than he claims.
Emulators are perfectly legal as they don't contain copies of copyrighted code or data (which DOSBox doesn't).
We have a Windows 3.11 package ready to run in DOSBox:
http://www.abandonia.com/vbullet/showthread.php?t=27770
Obviously, the assumption is that you already have DOSBox installed on your system. If you don't, check the tutorial section:
http://www.abandonia.com/vbullet/forumdisplay.php?f=90