Options to distribute Squeak (Seaside) app without source code

I will have a Squeak app that uses Seaside. It will not be offered hosted, 
but users will get a copy of it in some form to install and use.

Starting with my working Squeak image, what options do I have to:
  - make the source code hidden (byte-code level stuff is fine)
  - optionally: offer it to them as a single Windows executable

Thanks!

Sophie