Something strange on Vassal modules for Mac: no .vmod

Technical Support & Bugs
1

Good morning all. Im running Macs (powerbook and Studio) with Tahoe. I’ve been a fairly active user of Vassal – not to the extent of many of you grognards, but I know my way around, or thought I did.

The last modules I’ve downloaded – Winter’s Victory (New England Simuations), Eylau (Sound of Drums) and Shock, Shot and Faith (Hexasim) did not include the usual .vmod files – instead, folders with various .vsav for the various scenarios (see screenshots).

Is there something additional I need to do to run these modules on a Mac? My apologies if this has been addressed and I’ve simply overlooked it. Do I need to run the Terminal command that some other posters have cited?

Screenshot 2026-10-25 at 4.55.57 AM
Screenshot 2026-10-25 at 4.55.57 AM1472×392 47.8 KB

Screenshot 2026-10-25 at 4.55.42 AM
Screenshot 2026-10-25 at 4.55.42 AM1472×392 56.9 KB

Screenshot 2026-10-25 at 4.55.32 AM
Screenshot 2026-10-25 at 4.55.32 AM1472×372 45.8 KB

Best regards to all.

2

You are likely downloading the .vmod files with Safari, which will auto-decompress ZIP files. See here for how to disable that.

Remember to mark the post that solves your problem. It helps others find the solution to their problems. Only you can do it.

Edit: fixed link

Yours,
Christian

3

Thank you kindly, sir. That indeed solved the problem.

4

Great. BTW, there’s also The module I downloaded expanded into a bunch of files. I would love to update that with more information, but the post is not currently a wiki post.

@uckelman, could you make The module I downloaded expanded into a bunch of files into a wiki post so that it can be updated? Thanks.

Also, the post Mac OS2.6.5.1 Tahoe Unzipping vmod Files describes the same problem, so I guess we can expect this problem to come up again.

Yours,
Christian

5

I’ve done it.

This isn’t a new problem—it’s been happening for at least a decade.