
try this application :
UPHCLean (User Profile Hive Cleanup Service)

From Microsoft :
The User Profile Hive Cleanup service helps to ensure user sessions are completely terminated when a user logs off. System processes and applications occasionally maintain connections to registry keys in the user profile after a user logs off. In those cases the user session is prevented from completely ending. This can result in problems when using Roaming User Profiles in a server environment or when using locked profiles as implemented through the Shared Computer Toolkit for Windows XP.
On Windows 2000 you can benefit from this service if the application event log shows event id 1000 where the message text indicates that the profile is not unloading and that the error is "Access is denied". On Windows XP and Windows Server 2003 either event ids 1517 and 1524 indicate the same profile unload problem.
To accomplish this the service monitors for logged off users that still have registry hives loaded. When that happens the service determines which application have handles opened to the hives and releases them. It logs the application name and what registry keys were left open. After this the system finishes unloading the profile.
Don't worry, this is free software Download here... 24 KB (Windows XP)
You will be prompted to validate your copy of Windows... you must use original Windows when you download it. As soon as you have downloaded the UPHClean installer (UPHClean-Setup.msi), double-click the installer to begin the installation.
- In the User Profile Hive Cleanup Service installation wizard, click Next.
- In the License Agreement page, read the license agreement, select I Agree, and then click Next.
- In the Select Installation Folder page, click Next.
- In the Confirm Installation page, click Next.
- When UPHClean is installed, click Close.
UPHClean runs as a service in Windows and will start automatically every time that Windows starts.
To confirm that UPHClean is installed and running, click Start, and then click Run.
type services.msc and then click OK

In Services, in the Name column, locate User Profile Hive Cleanup. In the Status column, confirm that the User Profile Hive Cleanup service is Started.

or... open Task Manager (Ctrl+Alt+Del) then locate uphclean.exe process...

it just taking as much RAM as Notepad

Must have application... I have tried it, significally faster shutdown
