Windows XP and IE7 has at least 8 index.dat files.

FYI- Using XP and IE7

Open command prompy type in following:

dir c:\index.dat /s /a h s (if windows is installed on c:)

To create a text file of this in the root dir of c:\ type:

dir c:\index.dat /s /a h s >c:\idotdat.txt

Results are as follows:

1. C:\Documents and Settings\LocalService\Cookies\

Can Open With notrpad.exe Client UrlCache MMF Ver 5.2, 16,384 bytes

2. C:\Documents and Settings\LocalService\Local Settings\History\History.IE5\

Can NOT open or view with "Windows Explorer.exe" even if set to show hidden and systems files and folders.

3. C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\

Can Open With notrpad.exe Client UrlCache MMF Ver 5.2, 32,768 bytes

4. C:\Documents and Settings\Current User\Cookies\

Can Open With notrpad.exe Client UrlCache MMF Ver 5.2, 16,384 bytes

5. C:\Documents and Settings\Current User\Local Settings\Application Data\Microsoft\Feeds Cache\

Can NOT open or view with "Windows Explorer.exe" even if set to show hidden and systems files and folders.

6. C:\Documents and Settings\Current User\Local Settings\History\History.IE5\

Can NOT open or view with "Windows Explorer.exe" even if set to show hidden and systems files and folders.

7. **C:\Documents and Settings\Current User\Local Settings\History\History.IE5\MSHist012007042320070424\

Can NOT open or view with "Windows Explorer.exe" even if set to show hidden and systems files and folders.

8. C:\Documents and Settings\Current User\Local Settings\Temporary Internet Files\Content.IE5\

Can NOT open or view with "Windows Explorer.exe" even if set to show hidden and systems files and folders.

Total Files Listed: 8 File(s)

You can not go by file size to see if the file is empty.

1. Browse the Internet to fill up IE with data.

2. Run Analyze with CCleaner shows only one index.dat (with Version 1.38.485 or 139.502) Even with options set to "Show detailed log of Internet Explorer temporary files"

#7. **C:\Documents and Settings\Current User\Local Settings\History\History.IE5\MSHist012007042320070424\

3. Run Cleaner doesn't show any index.dat as being cleaned. Even with options set to "Show detailed log of Internet Explorer temporary files"

Running FREE "index.dat analyzer" shows data in HISTORY- Current User

http://www.systenance.com/indexdat.php

You can also use FREE "Super Winspy" to examine some of the index.dat files.

http://www.acesoft.net/winspy/

I have only found booting with a floppy or a CD that runs a batch file that deletes these files to be the only possible solution so far. Windows XP protects these files, Vista is even more protective.

This is a sick joke but a friend said "Maybe CCleaner should be called CDuster"

I STILL LIKE THIS PRODUCT!! :D

I just hope the next version improves.

I've got got 44 on this PC at work/college. :D

Volume in drive C has no label.

Volume Serial Number is B8EA-7DCC

Directory of c:\Documents and Settings\Admin\Cookies

24/04/2007 09:50 AM 16,384 index.dat

1 File(s) 16,384 bytes

Directory of c:\Documents and Settings\Admin\Local Settings\History\History.IE5

24/04/2007 01:37 PM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\Admin\Local Settings\History\History.IE5\MSHist012007042420070425

24/04/2007 01:37 PM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\Admin\Local Settings\Temporary Internet Files\Content.IE5

24/04/2007 09:50 AM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\Admin\UserData

10/04/2007 09:22 AM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\Administrator\Cookies

19/03/2007 02:26 PM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\Administrator\Local Settings\History\History.IE5

19/03/2007 02:26 PM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\Administrator\Local Settings\History\History.IE5\MSHist012006081520060816

15/08/2006 07:14 PM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\Administrator\Local Settings\Temporary Internet Files\Content.IE5

19/03/2007 02:26 PM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\Default User.WINDOWS\Cookies

27/04/2006 11:22 PM 16,384 index.dat

1 File(s) 16,384 bytes

Directory of c:\Documents and Settings\Default User.WINDOWS\Local Settings\History\History.IE5

27/04/2006 11:22 PM 16,384 index.dat

1 File(s) 16,384 bytes

Directory of c:\Documents and Settings\Default User.WINDOWS\Local Settings\Temporary Internet Files\Content.IE5

28/04/2006 01:44 PM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\LocalService\Cookies

02/03/2006 07:53 PM 16,384 index.dat

1 File(s) 16,384 bytes

Directory of c:\Documents and Settings\LocalService\Local Settings\History\History.IE5

02/03/2006 07:53 PM 16,384 index.dat

1 File(s) 16,384 bytes

Directory of c:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5

02/03/2006 07:53 PM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\LocalService.NT AUTHORITY\Cookies

24/04/2007 09:04 AM 16,384 index.dat

1 File(s) 16,384 bytes

Directory of c:\Documents and Settings\LocalService.NT AUTHORITY\Local Settings\History\History.IE5

24/04/2007 09:04 AM 16,384 index.dat

1 File(s) 16,384 bytes

Directory of c:\Documents and Settings\LocalService.NT AUTHORITY\Local Settings\Temp\Cookies

12/06/2006 09:02 AM 16,384 index.dat

1 File(s) 16,384 bytes

Directory of c:\Documents and Settings\LocalService.NT AUTHORITY\Local Settings\Temp\History\History.IE5

12/06/2006 09:02 AM 16,384 index.dat

1 File(s) 16,384 bytes

Directory of c:\Documents and Settings\LocalService.NT AUTHORITY\Local Settings\Temp\Temporary Internet Files\Content.IE5

12/06/2006 09:02 AM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\LocalService.NT AUTHORITY\Local Settings\Temporary Internet Files\Content.IE5

24/04/2007 09:04 AM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\NetworkService\Cookies

02/03/2006 07:52 PM 16,384 index.dat

1 File(s) 16,384 bytes

Directory of c:\Documents and Settings\NetworkService\Local Settings\History\History.IE5

02/03/2006 07:52 PM 16,384 index.dat

1 File(s) 16,384 bytes

Directory of c:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5

02/03/2006 07:52 PM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\NetworkService.NT AUTHORITY\Cookies

24/04/2007 09:04 AM 16,384 index.dat

1 File(s) 16,384 bytes

Directory of c:\Documents and Settings\NetworkService.NT AUTHORITY\Local Settings\History\History.IE5

24/04/2007 09:04 AM 16,384 index.dat

1 File(s) 16,384 bytes

Directory of c:\Documents and Settings\NetworkService.NT AUTHORITY\Local Settings\Temporary Internet Files\Content.IE5

24/04/2007 09:04 AM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\student\Cookies

28/02/2006 05:52 PM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\student\Local Settings\History\History.IE5

28/02/2006 05:52 PM 65,536 index.dat

1 File(s) 65,536 bytes

Directory of c:\Documents and Settings\student\Local Settings\History\History.IE5\MSHist012006020620060213

14/02/2006 10:59 AM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\student\Local Settings\History\History.IE5\MSHist012006021320060220

21/02/2006 10:13 AM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\student\Local Settings\History\History.IE5\MSHist012006022020060227

28/02/2006 06:22 PM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\Documents and Settings\student\Local Settings\History\History.IE5\MSHist012006022820060301

28/02/2006 06:30 PM 49,152 index.dat

1 File(s) 49,152 bytes

Directory of c:\Documents and Settings\student\Local Settings\Temporary Internet Files\Content.IE5

28/02/2006 07:36 PM 327,680 index.dat

1 File(s) 327,680 bytes

Directory of c:\WINDOWS\ERDNT\systemprofile\Cookies

28/04/2006 01:45 PM 16,384 index.dat

1 File(s) 16,384 bytes

Directory of c:\WINDOWS\ERDNT\systemprofile\Local Settings\History\History.IE5

28/04/2006 01:45 PM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\WINDOWS\ERDNT\systemprofile\Local Settings\History\History.IE5\MSHist012006042820060429

28/04/2006 01:45 PM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\WINDOWS\ERDNT\systemprofile\Local Settings\Temporary Internet Files\Content.IE5

28/04/2006 01:45 PM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\WINDOWS\pchealth\helpctr\OfflineCache

26/05/2006 12:24 PM 86,327 index.dat

1 File(s) 86,327 bytes

Directory of c:\WINDOWS\system32\config\systemprofile\Cookies

28/04/2006 01:45 PM 16,384 index.dat

1 File(s) 16,384 bytes

Directory of c:\WINDOWS\system32\config\systemprofile\Local Settings\History\History.IE5

28/04/2006 01:45 PM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\WINDOWS\system32\config\systemprofile\Local Settings\History\History.IE5\MSHist012006042820060429

28/04/2006 01:45 PM 32,768 index.dat

1 File(s) 32,768 bytes

Directory of c:\WINDOWS\system32\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5

28/04/2006 01:45 PM 32,768 index.dat

1 File(s) 32,768 bytes

CCleaner picks up 3 out of 5 index.dat files belonging to admin:

Marked for deletion: C:\Documents and Settings\Admin\Local Settings\Temporary Internet Files\Content.IE5\index.dat

Marked for deletion: C:\Documents and Settings\Admin\Cookies\index.dat

Marked for deletion: C:\Documents and Settings\Admin\Local Settings\History\History.IE5\index.dat

As you see I'm logged in as admin so CCleaner will not clean those index.dat files belonging to other profiles.

CCleaner can only keep get better :)