How to archive the multiple files in multiple directories in FTP communication channel

Hi Experts,

I have one new requirement

its a FILE to Proxy scenario.

I am picking the files from multiple directories and placing in one archive directory.

Now the requirement is--- I need to pick the files from multiple directories and archive to multiple folders.

But in SAP PI standard communication channel we can place the all files in one archive folder.Can you please let me know how to write batch script for this scenario.

We are using FTP channels and its a windows server.

Can you please give the sample code for that and also let me know where I need to place the batch file(AL11 server in sap PI or FTP windows server)

Regards,

Azeem