>>>>>>>>>>>>>>>>>>>>>
>>You can get a copy of ReFox. It will encrypt the EXE so normal attempts to decompile it will fail.
>>
>>You can find it at Hallogram or http://www.xitech-europe.co.uk/ReFox.html.
>>>>>>>>>>>>>>>>>>>>>
>
>I believe (maybe wrong here) that Refox's encryption will only protect from another Refox, not something else.

Using ReFox to brand an encrypted application will make it so another person using ReFox can not decompile it. Using another decompiler will not respect this and it will attempt to decompile the application. However, as Michel posted, ReFox's encryption algorithm is very good and I haven't heard of any one being able to decompile an encrypted application either. There was one company that claimed they could, but they are out of business now so I don't think their claims were well founded.