Publishing Engine Programmer's Guide > PTC Arbortext Publishing > Arbortext Publishing Engine Client Composer > Client Composer Parameter Types > Handling File Parameters
  
Handling File Parameters
A file parameter must have the value of the absolute path to a file located on the Arbortext PE server. When it receives a publishing request from the Client Composer, the Arbortext Publishing Engine Server Composer will examine each file parameter and report an error if the specified file is not found. If a file parameter value starts with e3: or pe:, the prefix is removed from the parameter value before it is transmitted to the server.