Intention is to see the % of original code being reused for Win32 port. Here are the number as of 2-26-2016 for various libs
libssh 89.09911361805 %
scp 85.2348993288591 %
sftp 93.3269323091695 %
sftp-server 76.2975778546713 %
ssh 90.1238422312415 %
ssh-add 99.6138996138996 %
ssh-agent 85.7938718662953 %
sshd 84.0249187432286 %
manojampalam