How to install and use NEM NIS?

I am trying to install and use NIS on windows and it looks to me that installation guide that I have found is obsolete.

So when I click runMon.bat, I got nothing apart from an error:

Error: Could not find or load main class org.nem.monitor.NemMonitor

When I try to run runNis.bat, I get a lot of info stuff, sometimes sprinkled with java stack traces (which does not remind a ready to use program).

09:07:07.380 WARNING Timer BROADCAST raised exception: org.nem.core.connect.FatalPeerException: Peer returned 500 with error: <? Internal Server ErrorE org.nem.core.connect.InactivePeerException: java.net.ConnectException:??>
java.util.concurrent.CompletionException: org.nem.core.connect.FatalPeerException: Peer returned 500 with error: <? Internal Server ErrorE org.nem.core.connect.InactivePeerException: java.net.ConnectException:??>
at java.util.concurrent.CompletableFuture.encodeThrowable(Unknown Source)
at java.util.concurrent.CompletableFuture.completeThrowable(Unknown Source)
at java.util.concurrent.CompletableFuture.uniApply(Unknown Source)

at org.apache.http.impl.nio.reactor.AbstractIODispatch.inputReady(AbstractIODispatch.java:116)
at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:164)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:339)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:317)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:

But at least it does not crash. Then the tutorial tells me to go to http://localhost:8989. This refuses to connect.
So does NEM NIS works or do I use an outdated tutorial?

That is a guide to running NCC. NCC can still be used, but it is no longer included with NIS. NCC is also outdated. It is suggested that you use Nanowallet.

Here is where you can download the NIS and Nanowallet:
https://nem.io/downloads/

If you are just trying to use the wallet, you do not need NIS, you can just connect to a remote NIS in Nanowallet.
If you are trying to run NIS, make sure you are using the latest NIS and Java, and then run nix.runNis.sh

Thank you very much Saul for your reply.

I am not interested in nano-wallet, just want to install NIS and play with the API. Yes, I have the latest Java and if the download link you provided has the latest NIS, then I have a latest NIS as well.

I downloaded it from the same link, but NCC is included with NIS (that tgz archive has mon, ncc folders as well as sh/bat files to launch them).

Is there any reason outdated things are included in that archive?

I am not sure why remnants of NCC still exist in NIS package. I will ping the developers. Either they can remove it completely, or let us know why the NCC folder still exists.
@gimre @BloodyRookie

Currently only the startup script remains.
It does not include Java jar file as a program.
It seems to be able to start up, it is a situation that can not actually be started.

In this state, confusion is born, so I would like to recommend deleting all but NIS.

Thanks