Error copying files from Unix (Solaris10) to Windows Server 2003 using scp/sftp

Hi,

I have generated a Public/Private Key Pair in Solaris Unix (source) server and deployed the Public key in Windows 2003(target) server .ssh directory of user profile.

When i try to connect(ssh, scp, sftp) from Unix, i'm getting below error message.

Sun_SSH_1.1, SSH protocols 1.5/2.0, OpenSSL 0x0090704f
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Rhosts Authentication disabled, originating port will not be trusted.
debug1: ssh_connect: needpriv 0
debug1: Connecting to <windows server> [ip address] port 22.
debug1: Connection established.
debug1: identity file ./id_rsa type 1
debug1: Remote protocol version 1.99, remote software version OpenSSH_3.7p1
debug1: match: OpenSSH_3.7p1 pat OpenSSH_3.6*,OpenSSH_3.7*,OpenSSH_3.8*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-Sun_SSH_1.1
debug1: Failed to acquire GSS-API credentials for any mechanisms (No credentials were supplied, or the credentials were unavailable or inaccessible Unknown code 0)
debug1: SSH2_MSG_KEXINIT sent
Connection closed by <windows server ip>
debug1: Calling cleanup 0x341a0(0x0)

When i try the reverse passion by connecting to Unix server from Windows using the same key pair, it is working fine with out any issues.

Please advise what could be the problem with Windows server in accepting connection.

Thanks..!!
Ajay