WinSparkle is an OSS for Windows. Mac OSX implements a feature to check update information of each applications for granted. That is because there is a library to inform applicaction’s update information in it. Sparkle does it.
Library informs update(excerpt from intro video)
It can be embedded simply, check update at the initial phase of application so that it make us avoid using unknown resident program and dis-featuring usability. If you want to embed something in a Windows application, WinSparkle is a good choice.
