How do i run this on windows?

[Degamisu]

$ java bastools-tools-bt-0.4.0.jar
Error: Could not find or load main class bastools-tools-bt-0.4.0.jar
Caused by: java.lang.ClassNotFoundException: bastools-tools-bt-0.4.0.jar

[a2geek]

java -jar bastools-tools-bt-0.4.0.jar
... since this is a self-executing JAR, that should be all you need. Make sure you're using Java 11 (or later) as well.