ya i agree 100% if all you want to do is write an installler for a couple of plain text files installshield probably isnt the best choice. Theres tons of freeware/shareware insatllers out that might be more suitable for that purpose.
back to the main subject however i also like the idea of a setup for scripts but most people usually complain and some sites wont post them at all. I dont think the problem youll find is in writing it but getting people to follow suit.
