I just used the utility and it worked perfectly.  I really want to thank you for this fantastic tool. Frankly, I think its difficult to underestimate the effect this will have as far as expanding the use of DNN. I think you should rename this project the Manhattan Project (WW2s secret project to develop the A bomb).  This is a nuclear bomb, being designed with so little fanfare, it is almost in secret.

Quick suggestion (when time permits): I have fought with manual installation for so long that there was no problem for me with installing the pre-requisites.  However, maybe when time permits the first page of the install can include a couple links to the appropriate resources (how to install IIS, etc)