I have two graphic card on my notebook, one is integrated gpu (Intel HD 4600) and another GTX 860M, if i am running on integrated gpu inesis online will works fine, but if i am right click on the "Inesis Online.exe" and running on HIGH-Performance NVIDIA Processor (GTX 860M), inesis online will throw an error "Can't load client", before january SDK update this error never happened.
I also have a dual GPU laptop (Intel+Nvidia) however I can't reproduce your issue. For me it works fine.
However in this release I've changed DLL loading libraries.
Confirmed that's the fix!, thank you again for countless time , hopefully in the future you will manage to get the bug and really fix it without this 'hack'.
Thank you very much for confirming that the other library doesn't cause issues.
I've updated the main source branch, and uploading the Windows binaries right now.