Can a script.bat make changes to Windows PATH Environment Variable

Question

I'm trying to write a script that when clicked will add a couple of entries to the PATH Environment variable in Windows, instead of making the changes manually. I see .bat files being used all the time on Windows for a variety of reasons, so can a .bat script help me with something like that?

I actually need to download a zip from a location on the Internet, extract it to a specified location, then update the PATH in environment variable. Never done this before so any hints appreciated.