The NeoLoad installation file is an auto-extracting file that contains its own JRE version. This JRE is used to launch the installation UI itself.
It looks like NeoLoad is unable to launch the installer using its own JRE. Most of the time, this issue is due to some variable that has been set in your environment that disturbs the installer.
To check that, please open a DOS (command line) console and type
set to see all the variables. If you have one of the following variables set, please rename or unset it:
For example, rename