I can set up a MIRROR FTP server on Solaris using Crontab and shell program .But better to say it a similiar one ,because I cannot simulate all the FTP server working concurrently.It just depends on the time share I set in Crontab file . So ,do anyone know how to set up a high efficiency and powerful performance MIRROR FTP server ,such as Microsoft MIRROR FTP sites ? Are there any special softwares for it? Can anybody set up a same MIRROR FTP server using on WinNT ? Thanks first