AutoUpdate is a Perl script which performs a task similar to Red Hat's up2date or autorpm. It can be used to automatically download and upgrade RPMs from different HTTP or FTP sites, while also handling dependencies. Moreover, it can also be used to keep a server with a customized distribution plus all clients up to date.

Add auto update ability to an exsiting software. Just use serveral lines of code, your software will has the live update function. And you can view the clients update status, create update package on the server side through a GUI program. Support C#/VC/V

The program that automatically updates McAfee® software with the latest detection definition (DAT) files and scan engine. It upgrades all supported versions of McAfee VirusScan®.