I have a .zip file for a plugin, how do I make it compatible for tShock?

Don't know if this is the right place, but I'm at a loss. I have 3 plugins that need to be turned into a .dll file, the only issue is that tShock doesn't care, it won't take a .zip file.
One is essentials.
One is a plugin for loading instances.
The last one is a custom weapons API.
I don't really know if I can upload the files, the rules are kind of vague.

And of course, if you have a .dll of these, please link them.

Thanks in advance!