Why no silent installer

Hello,

I have been using SpywareBlaster for a number of years, and I really like it. It is part of my default set of install applications. In recent times, I have been using the chocolatey package management system a lot, if you don't know about it, you can find more information here:

http://chocolatey.org/

I want just in the process of setting up my granny's machine from a fresh install of the OS, and I have been able to do:

cinst MicrosoftSecurityEssentials
cinst ccleaner
cinst malwarebytes

And I also wanted to do the same with SpywareBlaster. I noticed that there wasn't a chocolatey package for it, so I started to create one. However, when I got to the step of testing it, I noticed that there was no silent switch available, to the point that I actually get a prompt telling me that it isn't supported. Chocolatey packages pretty much need to be silent to allow the easy deployment of packages.

What is the reason for not supporting a silent option?

Thanks

Gayr