This text is in the server_target.asp file, but remember that the context from the calling page is passed when the target file is executed. That means that calls to things like Request.ServerVariables("SCRIPT_NAME") may not return the value you might expect.

Request.ServerVariables("SCRIPT_NAME"): /samples/server_target.asp

Even though the line of code being executed is actually located in server_target.asp, it's still running in the context of the original page which, in this case, is server_execute.asp.