Send a message to a native application. And autofill user credential.Calls Accops Native Client extension. Ask for user credential and autofill that in webpage. Accops single sign-on extension and native applications can exchange messages through Accops Native Client extension using an API that is similar to the other message passing APIs. Native applications that support this feature must register a native messaging host that knows how to communicate with the extension. Chrome starts the host in a separate process and communicates with it using standard input and standard output streams.