Could you clarify where you saw this ID? If it's for a (like a temperature controller or power tool), I can help you find the correct official download link. Software - RKC Instrument Inc.

: You can find legitimate software downloads at the RKC Instrument Software page . 2. Industrial Manuals (Atlas Copco)

The exact identifier "9836xrkc" does not appear to correspond to a widely known software package or official public dataset. Based on the components of the string, there are two primary possibilities for what you are looking for: