Hi, my name is Stefano and I am new in this forum.
I'm asking a little help to create a jar archive with .img of one dos directory.
I have one folder of a dos program made by myself (executable + data files) many years ago, and now I would like to put it online with javadosbox, something like this site does with old games http://www.classicdosgames.com/online.html
I already created web pages that calls javadosbox and it opens jdosbox and jdosbox works. The problem is how to make jar packet with inside img image of my program.

Actually the problems are two:
1) the biggest problem is how to create .img file from a directory on hard disk. Now I am using osx (but I could also use windows if necessary); I tried to create image with osx "disk utility" but doesn't work; I tried under windows with imgmake ( Patch: Imgmake - creates floppy or harddisk images ) and didn't work; I tried under windows with mtools bximage (in the package of bochrsc) and doesn't work too.
For doesn't work it meand that I creat image but after I cannot open to insert files into it.
I can, for example, open images of games of classicdosgamer and extract or change files but not my image.
Of course I could take one "classic dos" image and replace files with my program but I didn't find enought big for my program.
Can you give me any hints how to make an image not from a disk but from a folder.... or maybe if you have an image that is not smoller than 6 mb I can use that, replacing files.

2) The second problem will be when i will must make jar package.
They say that to make jar package is necessary "manifest" file
What does it mean? Is it necessary also for package that are not java applications?

Thanks for hints
Stefano

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At end I managed to do.

I found image of doom game that is enought big and replaced files

and for jar, I could create without manifest.

Now the problem is that mouse of user doesn't fit mouse of application.

Any hint about how to fix?

Thanks