Hi. I'm learning how to make paksets, but I can't open the tool required to create them known as Makeobj. I downloaded it, but when I run it a window pops up and disappears immediately. I'm running Windows 10. Thanks for the help if anyone knows how to solve this issue.
makeobj is a command line software, there's no GUI. Open CMD (Windows Command Shell) and run makeobj and you'll see the commands you can run.
The more common, and the one you seek is makeobj <paksize> <output pak file> <input dat file>
paksize is pak followed with the pakset size. (e.g. pak128 for pak128 and pak192 for pak192.comic)
output pak file is the name of the output file. (e.g. truck.pak)
input dat file is the name of the dat file you want to compile (e.g. truck.dat)
Wiki - Creating Simutrans objects (https://simutrans-germany.com/wiki/wiki/en_doPak?page_ref_id=463)