Auto updating software
There is a recent trend for software to auto-update, and if you are logged in as administrator then it works pretty well, and hopefully with Longhorn and ClickOnce the experience will be good for non-administrators as well. What’s surprising is that its taken so long for the auto-update model to become popular.
About 13 years ago I developed my first distributed system on PC’s that was going to be widely deployed within an enterprise. The first thing I did (initialy just to make testing easier) was to write a stub that checked the currently installed version of the program, against the manifest file version on the server defined in the last version of the manifest. If the version was different, the stub downloaded the installer programme defined in the updated manifest and ran it, otherwise it started the application. The stub was so simple that we hoped it could cope with any update scenario and of course the stub could be updated anyway. Using this system we were able to keep thousands of PC’s up-to date without any manual intervention, other than publishing a new manifest and associated updates to the distribution points. Of course there is nothing clever in …