blksize=20000 is FTP-only thing. You cannot convert it to SFTP. You can most probably just skip that command.
I am converting a Windows script to change from using ftp.exe to winscp.com. I have installed version 5.13.4.
The ftp version of the script uses the "quote" command to execute commands on the remote server. The commands are things like "blksize=20000". I have changed the script to use the "call" command instead of "quote" as per the documentation.
I start my session using a command like ...
In my script and if I enter the commands from a winscp.com prompt, the call command always fails saying that the host is not communicating for more than 15 seconds. After a minute it times out.
Am I using the "call" command incorrectly?