We have a user who had and Iprint error while doing a ICapture Endcap lpt1

in french :
-> l'erreur 1018 a été renvoyée durant la tentative de mise à jour du registre.

If i translate it :

The error 1018 has been returned while trying to update the registry.

The iprint version is 5.42

The user have Windows Xp SP3 and has a script to End capture and make a new capture to printers.