video thumbnail view

[maeve]

Hi, I have Vista home premium and used to have a thumbnail view of AVI and
Mpeg files but now haven't, for some unknown reason they disappeared and now
I only have the icons. How do I get thumbnails back? I have no trouble
with JPEG or bitmap thumbnails. Thanks

 

[John Inzer]

Hi, I have Vista home premium and used to have a thumbnail view of
AVI and Mpeg files but now haven't, for some unknown reason they
disappeared and now I only have the icons. How do I get thumbnails
back? I have no trouble with JPEG or bitmap thumbnails. Thanks

=============================
No guarantees...but try this,
maybe it will restore the thumbs:

Go to...Start / Run and type
(or copy/paste):

"regsvr32 shmedia.dll"
(without the quotes)(Yes, there's
a space between 2 and S)

Click...OK.

A dialog box should report the following:

"DllRegisterServer in shmedia.dll succeeded"


--

John Inzer MS-MVP
Digital Media Experience

Notice
This is not tech support
I am a volunteer

Solutions that work for
me may not work for you

Proceed at your own risk

 

[PhiAlv]

I think that shmedia.dll is in WinXP but not Vista. I too cannot see video
thumbnails or previews in Vista's Windows Explorer (SP1) Business Edition 32,
however I CAN see video thumbnails (mpg, wmv, avi, and mov) in Irfan
thumbnail viewer. It appears to build the thumbnails on the fly, rather than
load existing thumbs (I could be wrong about this). But these Irfan generated
thumbnails are not accessed by Explorer. - Phil

 

[zachd [MSFT]]

When did this first break?
What's one particular file type you want this working for?

 

[PhiAlv]

Hi Zachd,

I don't know the date when WinExplorer first stopped showing video thumbs &
previews, but it's been in the weeks-to-months range. I've periodically
searched for a solution and, although I didn't find one, I noticed that there
have been similar comments in/on various forums and sites. The only "new"
info I added was that IrfanView does show video thumbs, albeit only to a max
of 100 video 'MRUDs', but it does do so for mpeg, wmv, avi, and mov files.
(The only kinds I checked.) Also, I didn't mention this, but the old program
Firehand Ember shows thumbs for mpegs, but not wmvs (I didn't check others).
Finally, Explorer DOES show thumbs and previews for jpeg and other image
files. I don't know if any of this helps explain why Explorer won't show them.
My system info is: Vista 32 Business SP1 running on a Lenovo Thinkpad T60
[2 CPUs T7200 2.00GHz; 100 GB HD; approx. 38 GB free; ATI Mobility Radeon
1400 (128 MB RAM)]. All available updates from Microsoft and Lenovo are
installed and the BIOS is up to date. No viruses, spyware, or malware appear
to be running.
Thanks, Phil

 

[maeve]

Hi, I have them back now and I think it's because I downloaded a fix that I
found on this page. It seemed to be a common thing reading the forums and I
got this page from one of them.
http://www.winhelponline.com/articles/105/1/File-association-fixes-for-Windows-Vista.html
it's handy to know if anyone else has the same problem.
Thanks Ramesh you have helped me before when I had all but given up.

 

[PhiAlv]

Thanks Maeve I'll look at the files and give them a shot. (I prefer not
running scripts that modify the registry unless I know the source, but if
they look okay I'll run them.) Thanks, Phil

 

[zachd [MSFT]]

What are the keys and values under:
HKEY_CLASSES_ROOT\.mpeg\ ShellEx
?

--
Speaking for myself only.
See http://zachd.com/pss/pss.html for some helpful WMP info.
This posting is provided "AS IS" with no warranties, and confers no rights.
--

Hi Zachd,

I don't know the date when WinExplorer first stopped showing video thumbs
&
previews, but it's been in the weeks-to-months range. I've periodically
searched for a solution and, although I didn't find one, I noticed that
there
have been similar comments in/on various forums and sites. The only "new"
info I added was that IrfanView does show video thumbs, albeit only to a
max
of 100 video 'MRUDs', but it does do so for mpeg, wmv, avi, and mov files.
(The only kinds I checked.) Also, I didn't mention this, but the old
program
Firehand Ember shows thumbs for mpegs, but not wmvs (I didn't check
others).
Finally, Explorer DOES show thumbs and previews for jpeg and other image
files. I don't know if any of this helps explain why Explorer won't show
them.
My system info is: Vista 32 Business SP1 running on a Lenovo Thinkpad
T60
[2 CPUs T7200 2.00GHz; 100 GB HD; approx. 38 GB free; ATI Mobility Radeon
1400 (128 MB RAM)]. All available updates from Microsoft and Lenovo are
installed and the BIOS is up to date. No viruses, spyware, or malware
appear
to be running.
Thanks, Phil

When did this first break?
What's one particular file type you want this working for?

--
Speaking for myself only.
See http://zachd.com/pss/pss.html for some helpful WMP info.
This posting is provided "AS IS" with no warranties, and confers no
rights.

 

[PhiAlv]

Follow-up to zachd [MSFT] message of 11/21/08:

Zachd:
I'm sorry for not responding to your question, and I don't know if you're
still following this thread, but the registry entries for
HKEY_CLASSES_ROOT\.mpeg (and HKEY_CLASSES_ROOT\.mpg and
HKEY_CLASSES_ROOT\.wmv) do NOT contain lines for Shellex or
PersistentHandler. However, they DO contain entries for OpenwithProgIDs, and
their content is shown below. Any suggestions?

Thanks,
Phil
_________________________________________________________

Key Name: HKEY_CLASSES_ROOT\.mpeg
Class Name: <NO CLASS>
Last Write Time: 10/24/2008 - 9:08 PM
Value 0
Name: <NO NAME>
Type: REG_SZ
Data: mpeg_auto_file

Key Name: HKEY_CLASSES_ROOT\.mpeg\OpenWithProgids
Class Name: <NO CLASS>
Last Write Time: 11/5/2008 - 6:36 AM
Value 0
Name: IrfanView.MPG
Type: REG_SZ
Data:

Value 1
Name: QuickTime.mpeg
Type: REG_NONE
Data:
_________________________________________________________

Key Name: HKEY_CLASSES_ROOT\.mpg
Class Name: <NO CLASS>
Last Write Time: 10/24/2008 - 9:11 PM
Value 0
Name: <NO NAME>
Type: REG_SZ
Data: mpg_auto_file

Key Name: HKEY_CLASSES_ROOT\.mpg\OpenWithProgids
Class Name: <NO CLASS>
Last Write Time: 11/5/2008 - 6:36 AM
Value 0
Name: IrfanView.mpg
Type: REG_SZ
Data:

Value 1
Name: QuickTime.mpg
Type: REG_NONE
Data:

Key Name: HKEY_CLASSES_ROOT\.wmv
Class Name: <NO CLASS>
Last Write Time: 10/24/2008 - 9:06 PM
Value 0
Name: <NO NAME>
Type: REG_SZ
Data: wmv_auto_file
_________________________________________________________

Key Name: HKEY_CLASSES_ROOT\.wmv\OpenWithProgids
Class Name: <NO CLASS>
Last Write Time: 11/4/2008 - 12:36 PM
Value 0
Name: IrfanView.wmv
Type: REG_SZ
Data:

Key Name: HKEY_CLASSES_ROOT\.wmv\PersistentHandler
Class Name: <NO CLASS>
Last Write Time: 11/15/2008 - 7:49 PM
Value 0
Name: OriginalPersistentHandler
Type: REG_SZ
Data: {00000000-0000-0000-0000-000000000000}

Value 1
Name: <NO NAME>
Type: REG_SZ
Data: {5E941D80-BF96-11CD-B579-08002B30BFEB}
_________________________________________________________

 

[zachd [MSFT]]

It looks pretty clearly like you uninstalled some application that deleted
those file associations. I don't recall the easiest way to restore them
offhand (I might later), but that information may be able to jumpstart you
into doing something like comparing your .mpeg / .mpg / .wmv reg entries
with a mate's registry and noticing that yours is missing a bunch of data.
=\

Look at somebody else's reg dump of those keys - you'll see what I mean.

--
Speaking for myself only.
See http://zachd.com/pss/pss.html for some helpful WMP info.
This posting is provided "AS IS" with no warranties, and confers no rights.
--

Follow-up to zachd [MSFT] message of 11/21/08:

Zachd:
I'm sorry for not responding to your question, and I don't know if you're
still following this thread, but the registry entries for
HKEY_CLASSES_ROOT\.mpeg (and HKEY_CLASSES_ROOT\.mpg and
HKEY_CLASSES_ROOT\.wmv) do NOT contain lines for Shellex or
PersistentHandler. However, they DO contain entries for OpenwithProgIDs,
and
their content is shown below. Any suggestions?

Thanks,
Phil
_________________________________________________________

Key Name: HKEY_CLASSES_ROOT\.mpeg
Class Name: <NO CLASS>
Last Write Time: 10/24/2008 - 9:08 PM
Value 0
Name: <NO NAME>
Type: REG_SZ
Data: mpeg_auto_file

Key Name: HKEY_CLASSES_ROOT\.mpeg\OpenWithProgids
Class Name: <NO CLASS>
Last Write Time: 11/5/2008 - 6:36 AM
Value 0
Name: IrfanView.MPG
Type: REG_SZ
Data:

Value 1
Name: QuickTime.mpeg
Type: REG_NONE
Data:
_________________________________________________________

Key Name: HKEY_CLASSES_ROOT\.mpg
Class Name: <NO CLASS>
Last Write Time: 10/24/2008 - 9:11 PM
Value 0
Name: <NO NAME>
Type: REG_SZ
Data: mpg_auto_file

Key Name: HKEY_CLASSES_ROOT\.mpg\OpenWithProgids
Class Name: <NO CLASS>
Last Write Time: 11/5/2008 - 6:36 AM
Value 0
Name: IrfanView.mpg
Type: REG_SZ
Data:

Value 1
Name: QuickTime.mpg
Type: REG_NONE
Data:

Key Name: HKEY_CLASSES_ROOT\.wmv
Class Name: <NO CLASS>
Last Write Time: 10/24/2008 - 9:06 PM
Value 0
Name: <NO NAME>
Type: REG_SZ
Data: wmv_auto_file
_________________________________________________________

Key Name: HKEY_CLASSES_ROOT\.wmv\OpenWithProgids
Class Name: <NO CLASS>
Last Write Time: 11/4/2008 - 12:36 PM
Value 0
Name: IrfanView.wmv
Type: REG_SZ
Data:

Key Name: HKEY_CLASSES_ROOT\.wmv\PersistentHandler
Class Name: <NO CLASS>
Last Write Time: 11/15/2008 - 7:49 PM
Value 0
Name: OriginalPersistentHandler
Type: REG_SZ
Data: {00000000-0000-0000-0000-000000000000}

Value 1
Name: <NO NAME>
Type: REG_SZ
Data: {5E941D80-BF96-11CD-B579-08002B30BFEB}
_________________________________________________________

Thanks Maeve I'll look at the files and give them a shot. (I prefer not
running scripts that modify the registry unless I know the source, but if
they look okay I'll run them.) Thanks, Phil