To be somewhat fair, I'm guessing it is probably an anomaly even for DOS games to have so many releases of the same game with all these oddball nuances in terms of different installers, different versions of the game EXE supporting slightly different sound/video options, etc. I'm guessing most "normal" DOS games just have one installer and one version of game files and that's that. It is kinda inevitable that many releases are bound to "get it wrong" when there are many variations to deal with instead of just one.
Yes, that is the part I will never understand, why not just re-use the Lemmings data files from the original disk release, for all the re-releases?
Lemming 2: The Tribes (with bonus Lemmings) only uses 4.25MB, with Lemmings 2 only using 3.47MB. I expect they could have easily just added Lemmings 2 to the existing CD release of the 'Lemmings & Oh No! More Lemmings' double pack. A triple Lemmings pack, offering CD Audio would have offered much better value.
I believe all known CD-audio versions do not offer the Adlib option, at least based on what I've heard here previously. If adlib.dat is still included in the game files, there's a decent chance some simple hacking of the game EXE can re-enable it (ie. always do adlib rather than always do CD-audio), like I've done in the past with CustLemm.exe. Of course, it seems somewhat pointless here when the end result would be more or less the same as playing a floppy release.
The ADLIB.DAT file is included, but there doesn't seem to be any way to enable Adlib support, via the command line at least.
I attached the executable files, if you were curious:
LEMMINGS.EXE uses a CD check, offering setup options when started.
VGALEMMI.EXE runs fine from hard disk, offering EGA/VGA support and all four machine type options.
