Made my own installation movie after noting that /Bizhawk/DOSBox seemed to missing one for Windows 3.11.
Used the multi-disk bundle and the .conf file supplied there and after completion, extracted a .bin that should look like this:
File: w311.bin
Size: 527,966,208 bytes
MD5: 08c5ac31b65fb63c498d2e3c649026b9
SHA1: ef4000bd4dc46b367dc264c59daddc262a41fc91