Why is the size of  5.1.0.X and 5.1.1.X service studio so very different?

Why is the size of  5.1.0.X and 5.1.1.X service studio so very different?

  
Service Studio 5.1.0.24 41.6Mb
Service Studio  5.1.1.7 17.7Mb

That is some difference :D
Not complaining, just curious what has been left out.
I doubt it's only debugging, because I would expect the size other way around tbh.
Hopefully the tutorials ... GRIN
Hi Joost,

I believe that previous versions used to virtualize the .Net Framework runtime, but since this is now a lot more widespread across computers, it has been changed to be just a downloadable 3rd party dependency.

Cheers,
Tiago Simões
Cool, thx.