You should have created an advanced tutorial for Adobe After Effects CS4 for windows Users, You have a higher success rate if you change the Host file yourself instead of using a patcher.
Sony vegas has many versions, Ranging from 9.0a-9.0-b,c,d,e and so on and so fourth, It is important to know which one you will be giving so your users are not pestered by Updates needing to fix bugs and add more content!
There is also a Higher chance that those keys will become blacklisted quickly if you post them there like that, you better option would be to place them in a .txt file inside the archives