Safety valve, I suppose.
"Temporary Files - Programs sometimes store temporary information in a Temp
folder. Before a program quits, the program usually deletes this
information. You can safely delete temporary files that have not been
modified within the last week."
from...
How to Automate the Disk Cleanup Tool in Windows XP
http://support.microsoft.com/kb/315246
I do not use Disk Cleanup (cleanmgr.exe), I use Disk Cleaner.
I have Disk Cleaner set to run quiet at startup. Runs for 5 seconds or so
and exits. I also like the fact that, after you set it up, it cleans all
the following with one click (and/or automatically at boot). Makes XP's
Disk Cleanup look like a piker. XP's Disk Cleanup will *not* clean
Content.IE5.
Disk Cleaner will Clean:
Temporary Internet Files {Including the contents of the Content.IE5 folder}
Internet Cookies
Internet History
System Temporary Folder
Recent Documents
Run... Dialog List
Find Document List
Find Computer List
URLs in IE Address Bar
URLs in Shell Address Bar
Media Player Recent URLs
WinZip Recent Files
WinZip Extract To Folders
Paint Recent Files
WordPad Recent Files
Cleans Recycle Bin (what else?)
Opera Cache
Opera Cookies
Opera History
Opera Visited links
Opera Download History and Download folder
Firefox Cache
Firefox Cookies
Firefox History
+ more
Disk Cleaner
http://www.diskcleaner.nl/
--
Hope this helps. Let us know.
Wes
MS-MVP Windows Shell/User
In