I've got the same error message when trying to install the nl2k_v4.04_libraries.nl2.

I have an XP Prof. PC-System and the installation of the Install-Programm 4.049 was successful.

Any ideas ?

I have the same problem with the installer with the error SystemNullReferenceException: Object refernce not set to an instance of an object. at NL2000V4_0.NL2000V4_0.Main.installPackage(String filename) at NL2000V4_0.NL2000V4_0.Main.addPackage() after choosing the first package to be installed, whic...