For anyone unfamiliar, in XP, Customize Notifications... is on the right click menu in the part of the Task Bar near the clock. If you left click, it shows the current icons and an assortment of Past Items that have appeared previously in this section of the Taskbar. It's a history of programs used and past downloads. MRU-Blaster does have a setting for getting rid of Past Items, but the effect is blocked per Javacool or maybe Past Items get replaced on restart. Anyway, Past Items live. Microsoft does show a way of getting rid of it: http://support.microsoft.com/default.aspx?scid=kb;en-us;283084 Delete the IconStreams and PastIconsStream values from the following registry key: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\TrayNotify Open Task Manager, click the Processes tab, click Explorer.exe, and then click End Process. In Task Manager, click File, click New Task, type explorer, and then click OK. MRU Blaster will do the first step, but the other 2 are still necessary. I'm just posting to observe that the new version doesn't remove the need to deal with Explorer.exe, and suggest that mentioning these steps in the description of how to handle this item might be useful. I should also mention that killing explorer.exe also ends all running programs, so it may be simpler to reboot afterwards. Sorry if I'm being aggravating. Thanks to AI, Hangman, and others who've discussed this in past threads.