Lightwright. The demo version of Lightwright is exactly the same as the regular version except that it has a maximum capacity of seventy-five lights instead of the usual 30,000, it will hold only fifty entries in each text category instead of the usual 6,000, and users are not required to register the program with John McKernon Software. For readers of Dramatics, the demo version will likely suffice. For those with larger production needs, a student license is available that is valid for three years.