Installing the latest Vassal?

Greetings Vassal Community - This is my first post in this forum, but I recently downloaded the latest Vassal Version. How do I export this from my download files to my computer? After trying this a few times, I gave up and went back to the old version. Now I get an error message that says something about needing a “Java Runtime Environment” - any help is appreciated! Thx

What is your OS? Exactly which file did you download? Assuming you’re on Windows, it should just be a simple matter of running the installer you downloaded (unless your anti-virus interferes).