Just found this interesting video:
http://youtu.be/bCLPrnrUQtM
It appears to be an enhanced version of the
Warcraft II shareware (most probably distributed on a CD) with mission briefing voice-overs, fully animated intro sequence and CD audio music. The main menu screen (visible at 02:07) identifies this version as WARCRAFT 2 SHAREWARE v1.08sh.
Two other versions of the
Warcraft II shareware - WARCRAFT 2 DEMO BETA v1.02elc and WARCRAFT 2 DEMO v1.20elc (both can be found
here) - only have MIDI music, a static slideshow version of the intro, and no briefing voice-overs.
[Edit] Found a download at a German website:
http://www.warcraft-akademie.de/warc...90177f850fab8a
It's not an ISO though, just the files in a folder, so I'm not sure if the high-quality music audible in the video is actually included.