There's nothing like "winscp server". I understand, that you want to set up an SFTP server on Windows machine, right?
Please follow this guide:
https://winscp.net/eng/docs/guide_windows_openssh_server

i want make winscp server (192.168.168.2) and this system i will install winscp and i want user access file this server through but facing issue

check the screen shot what i do i want ftp work i will carry winscp sftp through

If you are looking for instructions for setting up a public key authentication, see:
https://winscp.net/eng/docs/guide_public_key

can we able to do client side access users SFTP without password.
required steps configure that win 2012r2 standard and client users access without password but secure