Under Windows, you can redirect the stderr to a file. For instance, you can use the following command:
c:\rtserver >log.txt 2>&1
This will redirect the stderr (code 2) to the file specified by the redirection character (">"). Please refer to Windows Command Reference Manual (command "Redirection") for more information on this topic.
Issue/Introduction
How can I use redirection to prevent messages from printing to the screen when starting RTserver under Windows?