Carbon Black is security software that can block your application from running unless you whitelist it. Here’s a description of how a Chilkat user discovered that Carbon Black was the cause of his PowerBuilder application not working.
We figured out why the executable could not retrieve a token from Box. It was not a firewall/network issue, the application was being blocked from making any external connections by a security monitor named Carbon Black. Our security team whitelisted the executable name and then the program was able to retrieve a temporary token and retrieve a file. I do not have Carbon Black on my development virtual machine so running the executable, as opposed to running the app in the PowerBuilder IDE, did not trigger the same error.