Getting CRW thumbnails in Windows Explorer

[budtz]

Hi All,

***** USE AT OWN RISK *****

Those .THM files that come along with the .CRW files when using camera raw mode seem to be just jpegs with a different extension. So by telling Windows to treat them as such you can make Explorer show them as thumbnails. I fondled around with the registry a bit and found the following simple way of doing this:

Open regedt32 (via Run…) and go to (or create it if it doesnt exist):

My Computer\HKEY_CLASSES_ROOT\.thm

Add the following two string keys (without the quotes and dashes):

"Content Type" ------ "image/jpeg"
"PerceivedType" ----- "image"

and change the "(Default)" key to "jpegfile"


After a reboot the thumbnails should show up. I did this on Windows XP and I have no idea if it will work on any other system. If there's anybody out there knowing a bit more about the registry and thinks the trick mentioned above could cause any problems (or that it is harmless) please let me know !!!!

Again - use at own risk.

Casper.

[atleypnorth]

if you dont like messing with the registry you can
start up windows explorer, then tools from the menu and select 'Folder Options'
Click on the 'File types' tab and then select New.
For the extention enter thm. click on advanced and from the drop down list select jpeg ...

Not sure which method is easier but more than one way to do it :)

[pedlaruk]

I think that both methods do exactly the same thing - obviously safer to not go into the registry unless you really have to.

I can't see that the regedit will cause any problems at all - best to backup the registry before making any changes though!

Roy

[budtz]

Well, I dont know why, but when I do it the dialog box way I dont get the thumbnails (only the JPEG icon). Looking at what this way does to the registry it only changes the (Default) key to jpegfile but doesnt add the two other keys. Maybe its just a peculiarity of my system...... of course - if the dialog box does the trick thats the way to do it!

casper

[tonymac]

budtz wrote:
Well, I dont know why, but when I do it the dialog box way I dont get the thumbnails (only the JPEG icon). Looking at what this way does to the registry it only changes the (Default) key to jpegfile but doesnt add the two other keys. Maybe its just a peculiarity of my system...... of course - if the dialog box does the trick thats the way to do it!

casper
Mine did the same thing. I first changed the association with Explorer, and it changed the icon but didn't display previews. Then I added the keys to the registry, and it worked without even having to restart.

Thanks for the tip!