Aix server to windows Pc

Dear Sir
How to write a small script which would permit to aix server to exchange information with windows pc after a define interval of time.

My aix server is connected to a network and after preparing messages (mosthly txt message) with my windows pc station the script should be able to go and carry this message to a specify location of my server. The same thing when the server received a message for my pc the same script should carry it from the server to my windows work station maybe after each 30 minutes or less depend of the flow of messages.

Thank you
sobnc