Appupdater can update your applications, it provides advanced functionality to Windows, similar to apt-get or yum on Linux. It automates the process of installing and maintaining up to date versions of programs. It is fully customizable for use in a corporate environment.

Portable Appupdater automates the process of installing and maintaining up to date versions of programs. Appupdater is fully customizable for use in a corporate environment.
Portable Appupdater is a simple tool designed to provide advanced functionality to Windows, similar to apt-get or yum on Linux.
Appupdater Features:
1. List of supported Applications (Request New Application)
2. Upgrades can be fully automatic (daily checks), no user intervention required
3. Auto-detection of previously installed applications
4. Install, Upgrade, or Remove software
5. Support for offline use/USB device
6. Support for Windows/UNIX/Linux/MAC OS X platforms
7. Proxy support
8. Support for package installation lists or computer profiles in a corporate environment
9. Create your own custom repository if desired (not required)
10. Dependency support
11. Metalink standard based XML repository files
12. Support for use of external Metalink download programs, such as Aria2
13. Automatically feedsback installed version information to the server
14. Not limited to programs in the registry or with embedded version numbers
15. Self upgrading of course!

The license of this software is Free, you can free download and free use this system maintenance software.