DirSync Directory Synchronizer 

Easily backup, synchronize or replicate files and folders. It supports: run as service, remote admin, scheduling, simulation, email reporting, filtering, unicode filename, file revisioning, pre/post-sync process, path variables and detailed log.
backup sync synchronize replicate directory folder file revisioning

ezProxy 

ezProxy is a proxy server, make all your computers share one connection to internet. provide everything you need to simultaneously connect all your computers to the Internet through just one simple connection with your existing service provider.
window proxy server proxy server internet sharing firewall home network modem sharing intranet ezproxy shareware proxy server for windows

BusinessMail Email Server + Anti Spam System 

Fully multi threaded email server and anti-spam system with POP/SMTP plus web interface, offering powerful fully asynchronous operations, fully user configurable anti-spam system, user configurable filtering, aliasing, list handling plus lots more.
mail server internet mail server anti-spam network internal smtp pop3 external

KF Web Server 

KF Web Server is a free HTTP Server that can host an unlimited number of web sites. Its small size, low system requirements and easy administration make it the perfect choice for both professional and amateur web developers alike.
web server http server free freeware http personal web server software keyfocus kfws

WebGate 

Internet paging gateway that allows for email and web messages to be sent to alphanumeric pagers, cell phones or other paging devices. Email and email notification can be sent to numeric pagers.
web internet email pager paging cgi intranet communication wireless messaging pagers digital phone e-mail

IronFTP Server 

IronFTP is a highly flexible commercial-grade FTP server for use by anyone from individuals to global corporations. IronFTP features an NT service based server application combined with a very high quality administration console.
ironftp ftp server ftp server ftp software mainframe file transfer