Where / how to handle the following...

Project for a client... I connect to a clients webserver, make a call to a service. The service does some stuff, and extracts some/all records from given tables and builds a ZIP file and puts in a private FTP directory.

Upon success, I get a return code and immediately FTP connect and download the ZIP file... no problem so far.

Now, on the local file server side, I run unzip and all the files get unzipped -- this is not the problem... they all unzip and no corruption.

The problem is that the credentials from the web server don't match that of the local file server and therefore, a standard user can't open the files to process the next phase of work. This requires an Admin user to select the files, right-click/properties and mark them as readable to all within the user group in question.

How can I go about resetting the credentials on the local side so the given group doesnt have to bother the admin to keep resetting the file properties.

Thanks