Re: Desktop files enumerated in windows user.dat?

From: Andrew Pilley (ashridahat_private)
Date: Tue Apr 23 2002 - 21:14:56 PDT

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    Hmm. Is it conceivable that this is a mechanism that Microsoft uses to
    cache the users desktop, to achieve a faster startup? 
    
    All it would really need to do is describe the desktops last state on
    shutdown/logoff, and i wouldn't be surprised if the icons were cached in
    there as well. In a networked environment, i could see how this might
    add a reasonable amount of speedup, since the USER.DAT file may well
    have been read already, saving quite a few file reads.
    
    Since i don't have a windows box around to test tho, i can't really add
    any more suggestions than that, but it seems like a useful optimisation
    to have, like building a small index of subject lines for mailboxes, to
    speed opening the mailbox, which you keep updated.
    
    Andrew Pilley,
    Junior Linux Sysadmin.
    
    On Wed, 2002-04-24 at 06:08, Burnette, Michael wrote:
    > Is anyone aware of what the file listing at the end of a Windows 98
    > User.dat is?  When I open the file with a text editor I see the
    > following (binary removed):
    > 
    > ptsscreenshot1small.gif PTSSCR~1.GIF 108 O :i +00 #C:\ 1 ( n Windows 1 (
    > p Temp 1 2 o * 
    > good wife's guide.jpg GOODWI~1.JPG 109 O :i +00 #C:\ 1 ( n Windows 1 ( p
    > Temp ( 2 * 
    > ATT00003.htm ATT00003.HTM 110 O :i +00 #C:\ 1 ( n Windows 1 ( p Temp ) 2
    > t +i UW 
    > Outing.jpg UWOUTI~1.JPG 111 O :i +00 #C:\ 1 ( n Windows 1 ( p Temp ( 2 t
    > +i 
    > ~0022115.jpg ~0022115.JPG 112 O :i +00 #C:\ 1 ( n Windows 1 ( p Temp 7 2
    > -+ 
    > 
    > I looked at my own to compare and found the filenames in mine match my
    > Windows 2000 desktop.  The binary in-between the filenames look a lot
    > like file attributes although I haven't yet been able to decode the raw
    > file using a DOS or W32 file time interpreter (winhex).  Notice also the
    > incrementing decimal values.  There are also entries for folders on the
    > desktop.  I'd be interested in knowing if anyone has a way to read this
    > as a directory listing.
    > 
    > Thanks,
    > Michael Burnette
    > Rogers & Hardin LLP
    > Atlanta, GA      USA
    
    -- 
    ----------------------------------------------------------------------
    Andrew Pilley  -   Cybersource Pty Ltd, Lvl 9, 140 Queen St. Melbourne
    ashridahat_private        Ph. 9642-5997 www.cyber.com.au
    
    
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