v0.4:
- bugfix: do not inform about hidden updates (which are hidden via the windows update control panel)
- added possibility for disabling popup-notification temporarily (updates will be searched but no popup will be shown). Can be useful for disabling notifications during presentations.


v0.3:
- popup redesign
- if connection to the update-service can not be established, retry every 30 seconds. After 10 iterations search every hour for updates.


v0.2:
- search for new updates every hour
- added icons for the three states: searching, updates found, no updates available


v0.1:
- informs about updates via a popup
- enables to open the windows uipdate dialog directly
- is shown as a icon in the system tray