After I install IP4.2, I get this error which makes the software unusable:
"An error occured during the current computation. Please check the system event log for more information and report to IP support".
Since I don't have permission to install the full version of the software to test it, I recommend checking the official website and the support offered on the website. You have the possibility to walk by the office or contact them based on your location.
Use the following link to obtain information about contact details and locations: http://www.lr-senergy.com/contact-us