Query wrote:

The same problem ,I also face," Too Many parameters for command 'open' ".Still I can't figure out that.Even While I omit 'Host-key' part,Error skips.But struck further.
Can I create,hostkey or SSH key by Pageant/Puttygen key generator.than use it in Command.Or while connecting with OPEN command,Remote PC will automatically share the SSH key for authentication.

Unless you provide more details (the script itself) I can only point you to:
https://winscp.net/eng/docs/faq_script_switch

The same problem ,I also face," Too Many parameters for command 'open' ".Still I can't figure out that.Even While I omit 'Host-key' part,Error skips.But struck further.
Can I create,hostkey or SSH key by Pageant/Puttygen key generator.than use it in Command.Or while connecting with OPEN command,Remote PC will automatically share the SSH key for authentication.

The problem is that you did not use quotation mark " (U+0022) around -hostkey value, but left/right double quotation marks “” (U+201C and U+201D). WinSCP (and any other command-line tool I know of) does not recognize these.

when running my script that have RSA host key i get the following error message
the Script from command line using WINSCP.com /script=ICEChatChatCopy.txt
What am i doing work with the open cmd? Please Help!

# Automatically abort script on errors
option batch abort
# Disable overwrite confirmations that conflict with the previous
option confirm off
# Connect
open sftp://# Automatically abort script on errors
option batch abort
# Disable overwrite confirmations that conflict with the previous
option confirm off
# Connect
open sftp://userid:password@mft.theice.com/ -hostkey=“ssh-rsa 1024 05:14:b6:0f:9f:f5:b9:7b:78:e4:dd:6c:2f:f3:8e:d8”
# Change remote directory
cd /compliance
# Force binary mode transfer
option transfer binary
# Download file to the local directory C:\ChatTest
get xcelenergy_20*.xml C:\ChatTest
# Disconnect
close:xcel4vantage$$@mft.theice.com/ -hostkey=“ssh-rsa 1024 05:14:b6:0f:9f:f5:b9:7b:78:e4:dd:6c:2f:f3:8e:d8”
# Change remote directory
cd /compliance
# Force binary mode transfer
option transfer binary
# Download file to the local directory C:\ChatTest
get xcelenergy_20*.xml C:\ChatTest
# Disconnect
close