mkdir C:\cygwin_install
copy /Y \\fileserver\cygwin_install C:\cygwin_install

copy C:\cygwin_install\rsyncd.conf C:\cygwin64\etc\rsyncd.conf
copy C:\cygwin_install\rsyncd.secrets C:\cygwin64\etc\rsyncd.secrets
net stop rsyncd
net start rsyncd

del /Q C:\cygwin_install
rmdir C:\cygwin_install