A .bin file contains the actual code and data without any format.  It's the same as a .com file.  An .exe file has a header which states what is placed where.  If you have a disassembler, I'm pretty sure you can get a .asm file from either a .com, .bin, .exe, even a .dll file.

Note that Reverse Engineering is typically disallowed in licenses.  Better check what your software license is first before you try something like this.

"Information has a tendency to be free.  Which means someone will always tell you something you don't want to know."