Place a winzone in your (preceding) level, put the name of your next level in the "if used" property box of the winzone, save standalone. That's pretty much it!
You can make a return winzone in the next level by simply putting the name of the first level in that box, or you can make things totally linear and have it go to level 3, or wherever! The possibilities are quite numerous! (I was gonna say limitless, but of course there is a limit; the number of levels and all the various level sequence variations, but you get the point)
MAME Cab PC: i7 4770@3.4Ghz (passmark 9945), 12GB RAM, Win 8.1/64, GeForce GTX645 (passmark 1898); Shiny new laptop: i7 4800MQ@2.7Ghz (passmark 8586), 16GB RAM, Win 8.1/64, GeForce GTX870M (passmark 3598); Old laptop: i5@2.3Ghz, 8GB RAM, Win 7/64, Intel 3000 graphics