Instalation Intel System Studio 2019 - OpenCL Issue

Hi,
     I installed Intel System Studio 2019 on windows platform.
     Running Visual Studio 2015 the following error pop up:
     "API Initialization failed:
     Failed to find intel OpenCL platform on local host".
     How can I resolve this issue?
     I have a licence for one instance of Intel Visual Studio 2019,
     Can I use the same registration to install Intel Visual Studio 2019 on a 
     second computer?
     Please advice.
     Best Regards,
     Micha