Ran accross this paper that does a good job of examining the history of content distrbution. Couple of years old now so it leaves out such items as Bittorrent but still a good read.

Believe it or not, you can develop, register and use COM objects with an LUA account ¹. COM objects are typically registered at one of one of two places.

At home I code a lot of singleton classes. Most of this code is boilerplate code that I just write over and over again. Originally I thought that generics would solve this problem. I planned to write a generic singelton of the following form.