FOSS gamedev and creative worlds

I use a windows 7 desktop to run a server instance of minetest. I tried shutting it down (via /shutdown) and exiting minetest. I restarted the same world, but it appears to be new. I don't have any of my resources I had when I shut it down.

How do I properly shutdown minetest so it saves the current state?

Also, is it possible to run minetest so I don't have to stayed logged in to my windows account?

OK, I figured out I was running an older installation, that's why my world was not how I exited it.

I still would like to know how to run a server in the background so I can log out of my account on my Windows machine.

Minetest doesn't have run as a windows service built in, but I found this article. I can't vouch for this because I haven't tried it but this would be where to start.

http://twigstechtips.blogspot.com/2011/02/windows-xpvista7-run-program-as-service.html

Just run minetest in the command line with

i do that to play, but sometimes, a stuck in the map, and i need to respawn, so how add some users admin ?
and where i cna get all the command admin for my home server please ?

When you start a dedicated server, the player in the "name" field of minetest.conf will get all privileges as soon as they join. Once you joined as that player, wait for user_name to join then type "/grant user_name all" to give them all privileges.