wyUpdate: the open source updater program for Windows

wyUpdate is the open source updater that's included with wyBuild. wyUpdate checks for updates, downloads any that are available, and safely updates your program. It handles in stride obstacles like Windows Vista's and Windows 7's User Account Control (UAC), limited-user problems, and many other subtleties.

How to build patches and release to your users

To build updates you need wyBuild (download wyBuild now - free 21-day trial). From wyBuild you can create tiny patches to the latest version of your software.

Buy a license to wyBuild (for commercial software projects)
Get a free license to wyBuild (for open source software projects)

wyUpdate Features

Some of the notable features of wyUpdate are:

Full automatic update support using the open source AutomaticUpdater control.
Silent update checking can be used with all programs no matter the language (C, C++, Delphi, Java, etc.).
Works in both Standalone mode and Automatic Update mode - seamlessly integrating with your .NET application.
Show info about your update to your users.
Ability to patch files using VCDIFF delta-patch format
Rollback updates if an unrecoverable error occurs or if the user cancels the update
Intelligent handling of all user-permission related problems (including UAC on Vista and Windows 7)
Can add/change/delete keys and values from registry
Can execute *.cmd, *.bat, *.exe, and *.msi files before and after updates
Creates shortcuts to your program files
Customize the theme to fit your corporate branding
Fully supports downloading from https sites & https site using self-signed SSL sites typical on corporate intranets
Full multilingual support, including automatic detection of you user's language.
Installs & Uninstalls COM dlls
Start and stop Windows Services.