Navis N4 requires Java SDK to be installed on client computer.

http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html

32-bit Win - http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-windows-i586.exe
64bit Win - http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-windows-x64.exe

Version 8 also work

Terminal operating system access could be achieved via two ways Native and Web based.

For Web based access follow this link:
http://navis.actburgas.bg:9080/apex/cap.zul

For Native access to Navis N4 please download this file and run it:
http://navis.actburgas.bg:9080/apex/apex.jnlp

For login credentials and support please don't hesitate to contact us on navis@actburgas.bg