Hello Alexander,
Thank you for the guidance.
The Document has Installing the agent procedure. However, since the agent is already deployed in our case, I did not want to overwrite the files. So I have done the following steps to upgrade the agent.
1> Copied/Overwritten the files ( *.DLL, *.msl, *.jar ) to the existing bin directory of the SAP agent.
2> Retained the *.ini file.
After restarting the agent, I could see the new version active.
Please let me know if this procedure is acceptable?
Thank you.