Installation procedure for HP-IL Emulation on HP-41X:

I am not responsible for anything you do with this software. The emulators are not designed to make any (software or hardware) damage but (due to the complexity of the code) if something goes wrong I am not responsible for that.

Again: Use this software at your (and only your) own risk!

Important notice: Features described below refer only to the full version - they could be missing from demo version.

It is assumed that a potential user of such software already knows how to transfer files from computer to calculator so this won't be explained here.

Installation procedure is the same for both HP-48GX and HP-49G.

(1) Install HP-IL enabled version of HP-41X as described in the installation guide for HP-41X together with HP41Z library containing the HPIL module.

(2) Load the HPIL module from HP41Z library to page 8.

(3) Run the HP41L.EXE server under Windows on the PC. All HP-IL server parameters can be configured from the front panel. Note that HP41L.EXE must always be started before the HP-41X emulator.

Of course, you have to connect the calculator to the PC via serial port.

HP41L.EXE server cannot be used with the HP-71X emulator.

Running HP-41X with HP-IL emulation under Emu48 (or any other HP-48/49 emulator) is not supported because of various timing problems.

Some advices to avoid HP-IL errors and similar problems:

(*) Always start HP-IL server first and HP-41X second.
(*) Serial ports on both PC and the calculator must be error-free.
(*) Use only good cable to connect the calculator to PC.
(*) To avoid data flow corruption, donít press unnecessary keys on the calculator while HP-IL transmission is in progress.
(*) Donít move or resize HP-IL server and console windows while HP-IL transmission is in progress because Windows will suspend the current thread and HP-IL timeout can occur.
(*) Donít minimize/maximize HP-IL server and console windows for the same reason.
(*) Donít toggle console between window/full screen mode for the same reason.
(*) Donít close the console window with Ctrl+C (close the HP-IL server window instead).
(*) Restore console to the window mode before closing HP-IL server.
(*) Use LIF files of the standard size only (131072 and 630784 bytes) if possible.
(*) Uncheck ĎFrame Monitorí if monitoring is not needed.
(*) For some printers, like LaserJet, press ĎRestartí button on the HP-IL server to start printing after you have sent all data to be printed from HP-41X, then press ĎForm Feedí button on the printer.