Windows vista has problem of Icon disappear from System Tray.
So, to make Important System Icon in sytem tray back in windows vista, you need to delete two entries from registry.
- Navigate to the key "HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion \TrayNotify"
- Delete the values "IconStreams" and "PastIconsStream"
- To make the change refresh, Open Task Manager (ctrl+shift+esc) and End Task the "explorer.exe" and Add again "explorer.exe" from File menu - New Task.