Npcc.89p is a program that will helps you to compile and run your own program source by launching a browser.

Enter the command to compile and run : npcc("your program source name")

Newprog.89z is the Newprog launcher. You can execute a program by launching newprog("*.NPP")

Newprogc.89z is the compiler (do not use, you will prefer to use npcc.89p)