>Hi everybody,
>
>I have a working exe which is 800KB. It references many apps. When I try to re-build this executable using the project file I have it creates 23MB executable.
>
>How the original executable was created and what can I do to make it match?
>
>Thanks in advance.

Try to compile classlib files before building exe. It may reduce size, though in your case difference is really huge.