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Re: Found the problem
Well, you're like a dog with a bone. This is good. I've never seen a .dat
file with a shell extension key. Now your .dat key (folder) in the Registry
should have no sub-keys, and only have two values in the left pane, under
the Name column: Default, with "(Value not set)" under the Data column, and
NoOpen, with nothing written, as in blank, under the Data column. Thanks
for the beer!
"JasonH" <JasonH@discussions.microsoft.com> wrote in message
news:1954FD4E-08C7-4D8A-B00E-52A7A6580E82@microsoft.com...
> Ironically enough, Palm just released a Vista-compatible Palm Desktop
> version
> yesterday, so I was able to uninstall the offending program, restore the
> registry, and install the new version. Most importantly, my .dat files
> aren't crashing my system anymore.
>
> Thanks a lot for your help, dean-dean. I owe you a virtual beer.
>
>
>
> "dean-dean" wrote:
>
>> Restoring your .dat extension to the Vista default won't hurt anything,
>> and
>> is advisable. Yes, your PalmOne made a shell extension for .dat files,
>> particularly in regards to Mail, but it's not compatible with, nor does
>> it
>> work, in Vista. Vista handles these thumbnails differently.
>> "{BB2E617C-0920-11d1-9A0B-00C04FC2D6C1}" is an old thumbnail preview
>> value
>> for creating thumbnails for .eml,.nws, .htm and .html. I'm not sure how
>> your .dat files got involved. As a matter of fact, I think Microsoft
>> discontinued using it because of a the security risk (Web View Script
>> Injection Vulnerability) it caused with Webvw.dll; Vista no longer uses
>> "Web View", but rather "Previews and Filters".
>>
>> At any rate, removing the shell extension should not harm your PalmOne.
>> In
>> PalmOne's Options/Preferences, or in its "Photo Suite", can you turn the
>> shell extension off (looking for something along the line of "Show
>> Preview...")? Can you uninstall the Photo Suite apart from PalmOne? Are
>> your picture files (.jpg's, etc.) associated with Photo Suite?
>>
>> To restore your .dat file extension, open
>> C:\Windows\System32\regedt32.exe,
>> by right-clicking on it and choosing Run as Administrator. Go to
>>
>> HKEY_CLASSES_ROOT\.dat
>>
>> and, in the LEFT-hand pane, select the .dat key, and delete it. Leave
>> Registry Editor open.
>>
>> Open Notepad.
>>
>> --------------------------------------------------------
>>
>> Windows Registry Editor Version 5.00
>>
>> [HKEY_CLASSES_ROOT\.dat]
>> "NoOpen"="
>>
>> --------------------------------------------------------
>>
>> Copy the above and Paste it into Notepad (not including the dashes) and
>> save
>> it as dat.reg (no .txt extension).
>>
>> Back in Registry Editor, on the menu, choose File, and then Import.
>> Navigate to wherever dat.reg is, and select it. Click Open in the
>> dialog.
>> Close Registry Editor. Log Off, and then back On. Your .dat files should
>> be
>> back to normal, and Explorer, hopefully, won't crash.
>>
>> Now sometimes, when you open a photo program, it may re-write the
>> registry
>> keys it thinks it needs. You might want to keep an eye on the .dat key
>> in
>> the Registry, to check for that behavior.
>>
>>
>>
>> "JasonH" <JasonH@discussions.microsoft.com> wrote in message
>> news:1B926F0E-E80A-4CF4-886E-4E26194F339F@microsoft.com...
>> > dean-dean, you called it. I finally found the ArcSpl.ax file on my
>> > computer
>> > -- it was installed along with Palm Desktop back in February as part of
>> > their
>> > photo suite, and it's located under C:\Program Files\palmOne.
>> >
>> > But when I go into regedit: HKEY_CLASSES_ROOT\.dat, there's an extra
>> > subfolder "ShellEx" with another subfolder
>> > "{BB2E617C-0920-11d1-9A0B-00C04FC2D6C1}". The (Default) key is present
>> > in
>> > all 3, but I can't delete any of them. I get "unable to delete all
>> > specified
>> > values." I've also not been able to successfully dis-associate my DAT
>> > files.
>> >
>> > I wasn't expecting to see that "ShellEx" subfolder -- do you think I
>> > can
>> > safely delete it? Or just substitute the key you suggested? I don't
>> > really
>> > care if I lose the Arcsoft functionality, but I don't want to create
>> > additional problems.
>> >
>> >
>> >
>> >
>> >
>> > "dean-dean" wrote:
>> >
>> >> Well, this is interesting. Somewhere on your computer there's a file
>> >> named
>> >> ArcSpl.ax, which is somehow involved in your crashes. If you could
>> >> right-click on that file, and open its properties, on the Details tab,
>> >> can
>> >> you tell what company made it or what program it might be involved
>> >> with?
>> >> It's not a Vista OS file. Try looking under C:\Program Files\Common
>> >> Files\arcsoft\mpeg engine.
>> >>
>> >> Anyway, having your .dat file extension associated with a program may
>> >> be
>> >> key, too. Explorer is trying to create a picture of a .dat file,
>> >> possibly,
>> >> and normally that file has no program association. (It might be
>> >> better
>> >> putting a shortcut to Notepad in Sendto, and looking at an
>> >> un-associated
>> >> .dat file that way, if you're so inclined). Why it's picking on
>> >> OESpamFilter.dat, I dunno.
>> >>
>> >> If you want try un-associating the .dat file extension, in the
>> >> registry
>> >> Editor, go to
>> >>
>> >> HKEY_CLASSES_ROOT\.dat
>> >>
>> >> and, in the right-hand pane, right-click and delete the value
>> >> "(default)",
>> >> under Name, (which will have the value "dat_auto_file", under Data).
>> >> Otherwise, you could make a .reg file in Notepad with this:
>> >>
>> >> --------------------------------------------------------
>> >>
>> >> Windows Registry Editor Version 5.00
>> >>
>> >> [HKEY_CLASSES_ROOT\.dat]
>> >> "NoOpen"="
>> >>
>> >> --------------------------------------------------------
>> >>
>> >> Copy the above into Notepad (not including the dashes) and save it as
>> >> dat.reg (no .txt extension). Close Notepad, then open dat.reg, and
>> >> allow
>> >> the Merge.
>> >>
>> >>
>> >> "JasonH" <JasonH@discussions.microsoft.com> wrote in message
>> >> news:BBC11B52-F0B3-4237-BCAD-26D2FBDD55E0@microsoft.com...
>> >> > Okay, through a clever use of the Extra Large Icons setting, I've
>> >> > managed
>> >> > to
>> >> > figure out that the cause of my problem is the OESpamFilter.dat
>> >> > file.
>> >> > If
>> >> > that file is onscreen as a thumbnail or attempts to register in a
>> >> > folder
>> >> > thumbnail, it crashes Windows Explorer. The problem is not general
>> >> > to
>> >> > .dat
>> >> > files -- I can have any other .dat file onscreen and nothing
>> >> > happens.
>> >> > It's
>> >> > only OESpamFilter.dat.
>> >> >
>> >> > Windows won't let me delete or even hide this file (access is
>> >> > denied).
>> >> > If
>> >> > I
>> >> > copy that file to some other location, it still crashes WE the same
>> >> > way
>> >> > (though at least I can delete those copies).
>> >> >
>> >> > What can I do about this? I've tried to change the default program
>> >> > for
>> >> > .dat
>> >> > files (it had been Notepad), but to no avail.
>> >>
>>
>>
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