Binary messages in Orchestration

Hi, how can I create an orchestration which accepts a binary message (say,
a 
zip file) and forwards it to a send ****t. The idea is to transfer zip
files 
from one folder to another. I can use simple file adapters with filter and

not create an orchestration at all, but I need to do some side work also 
(logging events in a DB, etc.) when a file has been moved. Basically I
need a 
messagetype that allows any content.