8.6

About Related Programs and Services
Services are programs that run in the background and automatically perform tasks that often do
not require any user interaction. With the exception of PReS Workflow Configuration, all the
programs used by PReS Workflow are run as service applications. PReS Workflow can thus
use them as required without the need for any user interaction.
Although you can manually start and stop any service running on your computer, most of the
basic services used by the system are started and stopped automatically. In the case of PReS
Workflow and their related services, you typically use a command included in your PReS
Workflow Configuration program to start and stop most services. Opening and closing your
PReS Workflow Configuration program has no effect on these services.
Available Input Services
Input services are used to pull in data files. The input services used by PReS Workflow are:
l LPD (Line Printer Daemon) Input service: Inputs data sent from an LPR client. The
LPD/LPR printing protocol is a common way to send print jobs that, in turn, use the
TCP/IP protocol to communicate through the network.
l PrintShop Mail Web Capture service: Monitors print requests from a PrintShop Web
server.
l Serial Input service: Monitors a single serial port for incoming data. Note that all Serial
input tasks use the same serial port (set in the user options of the PReS Workflow
Configuration program).
l Telnet Input service: Monitors multiple telnet ports for incoming data. Note that each
Telnet input task has its own telnet port number (set in each task).
l HTTP/SOAP Server service: Monitors web pages and web sites as well as SOAP
servers.
Available Output Services
Output services are used to output jobs. The output services used by PReS Workflow are:
l FTP Output service: Places output jobs on a server via the FTP protocol.
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