ClickOnce[1] does this. Some other apps have their own mechanisms to do the same, e.g. Google Chrome. I don't think it's a good idea though, as it makes those

ClickOnce[1] does this. Some other apps have their own mechanisms to do the same, e.g. Google Chrome. I don't think it's a good idea though, as it makes those apps more susceptible to being modified by malware. [1]: http://en.wikipedia.org/wiki/ClickOnce http://en.wikipedia.org/wiki/ClickOnce