I'm not sure I understand your question.

WinSCP supports SCP protocol, if that's what you asked. But for SCP protocol to work in a GUI client, the client needs to use lot of other shell commands in addition to scp. WinSCP is designed to work against *nix/bash shell in SCP mode. So it's quite likely that it won't work in SCP mode against Cisco device, unless it has *nix/bash-like shell.
For details, see https://winscp.net/eng/docs/requirements#scp

But why would you need to use SCP? Use SFTP or FTP.

Hi all,

Would WinSCP use SCP to copy files to and from Cisco devices?