i tried these two code for luaPlayer for windows...
the "Syatem.quit()" didn't work..

os.exit() worked in LuaPlayer for windows.
but when i tried it in my PSP it hangs..

im using luaplayer .20 no mods. and os.exit() freezes, and System.quit() gives me an error, and System.Quit() gives me the same error. could someone help with this? i really need the proper function for .20 and i cant find it.

Just break out of the script. You shouldn't ever need to use X.exitEtc(). i.e.

thx for the great help...always!

Well, those special functions were kind of useful when you only accessed your game through Lowser.  I always shared this information back when I experimented with it, but nobody else seemed to have believed me, or at least, nobody passed it on when this question popped up (which it did and does often):

The command os.exit() only worked with earlier versions of Luaplayer.  I know for a fact it worked with 0.16, and that it did NOT with 0.20.  I believe I tested it with 0.19 and it did not work on that version, but I don't remember for sure.

If you want to use 0.20 (which is understandable since it uses a more updated version of Lua), then I believe Cools' mods of LuaPlayer include the function System.Quit().  I know the function was in LuaPlayer 0.17dk2, but I'm pretty sure Cools integrated it into his (or made his own).

i have used and still do use System.Quit without lowser.