Click the question to show/hide the answerIs it possible to do a batch conversion of files?

Yes. All of EscapeE's functions are available from the command line: e.g:
ESCAPEE 1234.PCL /PDF
creates a file 1234.PDF by default but you can specify the output file using a /TO option. You can also set it up to run continuously and watch for files appearing in a particular directory. See Help section Running tasks; the command-line options are described in Help Reference topic 'Command line syntax'.
Click the question to show/hide the answerIs there a simple way of constructing a command line?

Open the 'Options|Configuration' dialog and set up the required options, then click on Shortcut. This saves the appropriate command line options as a shortcut (or you can copy the parameters from that dialog and use them on a command line). If you just want to call the program from the Start menu or the desktop you can set up the default directory in the program's 'Properties'.

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Click the question to show/hide the answerCan I do batch conversion without the viewer displayed?

There is an option, /WINDOW 1, which will cause EscapeE to run minimized e.g.
ESCAPEE TEST.PCL /PRINT /PAGE 5-9 /WINDOW 1

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Click the question to show/hide the answerIs there a way to have EscapeE shut down after launching it from the command line?

Yes, the /X option does this. The command-line options are described in the Help Reference section: see list in 'Command line syntax: index'.
Click the question to show/hide the answerWhat throughput can I expect when converting in batch mode? Also what are the system requirements (within reason) for maximum throughput?

It depends on the PCL® file: images slow the conversion down. For typical pages containing normal text it should be possible to achieve many pages per second on any reasonable machine. A PC with the minimum specification for the operating system should run EscapeE without problems.
Click the question to show/hide the answerIs TCP/IP input or output available?

Yes – it supports TCP/IP input from a specified port and can send its PDF output via LPR. See Help topic 'Setting TCP/IP options'.
Click the question to show/hide the answerCan I control EscapeE remotely?

Yes. EscapeE can be controlled remotely from a browser using the RedTitan® nQ server. You can get details including the cost of RedTitan’s NQ server by Emailing help@redtitan.com.
Click the question to show/hide the answerDo you have a version that works under UNIX?

EscapeE works well using the Wine emulator on Linux. Contact RedTitan ' for more information.
Click the question to show/hide the answerHow to I capture windows print driver output?

RedTitan® have a Port Monitor that does the job. Download the CapturedTitan Windows® print capture utility from https://www.pclviewer.com/resources/disk/