New with NSIS

Before i start to make and learn how to make a installer can you lets sat have a installer that installs your app than that becomes the starting point? Here is what the installer needs to do.
-Install files first time
-check if files need to be updated
-if they do download them
-start game.exe

can you start a exe from NSIS than close NSIS?

You can start an exe using the Exec command. To quit NSIS, simply call quit.




(You can let NSIS download stuff using one of the download plugins.)