WinXP Hide Inactive Icons Question

Does anyone know how to wipe clean the Windows Xp Hide Inactive Icons list?

In my Past List it shows applications I’ve long since uninstalled and I now want to remove these tracks. I presume it’s going to be a reg hack but where?
 
1.Open Regedit Navigate to:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\TrayNotify

2.Delete the IconStreams and PastIconsStream values

3.Open Task Manager, click the Processes tab, click Explorer.exe , and then click End Process .

4.In Task Manager, click File , click New Task , type explorer , and then click OK .
 
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