Windows Vista introduced a new imaging stack, called Windows Imaging Component (WIC), and uses it in Windows Explorer to create thumbnails for most image file formats. 3rd parties can write their own WIC codec to support proprietary image formats such as Nikon NEF or Canon CR2 raw files and Windows Explorer is able to show thumbnails for those files when the corresponding codec is installed. Microsoft maintain a page containing links to existing codecs.
Sadly, there is no publicly available codec for the Photoshop PSD format but the newly released Microsoft Expression Blend 3 design tool (which, by the way, is nothing short of amazing for WPF and Silverlight design) includes such a codec so installing Blend 3 automatically installs the PSD codec. For those who don’t have a need for Blend and don’t want to install it, here is a little hacking guide to extract the codec (a 256KB dll) and use it separately:
Get the codec and its dependencies:
- Download Microsoft Expression Blend 3.0 (3.0.1927.0 7/20/2009) Trial: Link
- Using 7-Zip, open ‘Blend_Trial_en.exe’ from step (1) and in the ‘Setup’ subfolder, open ‘BlImp.cab’ then extract ‘PSDCodec.dll’
- Download the Visual C++ 2008 SP1 Redistributable Package (x86): Link
Codec installation:
- Install the VC++ Runtime by running vcredist_x86.exe from step (3) above.
- Copy PSDCodec.dll from step (2) to some location on the harddisk, e.g. “C:\Program Files\PSDCodec”
- Register the codec from an administrator’s command prompt by running the following command: regsvr32 “C:\Program Files\PSDCodec\PSDCodec.dll”
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That’s it, Windows Vista Explorer should soon begin to display thumbnails for all PSD files that were saved from Photoshop with the “Maximum Compatibility” option. As a side effect, WIC-aware image viewers such as FastPictureViewer Professional (http://www.fastpictureviewer.com) automatically benefit from the codec installation and uses it to open and display the same PSD files with full fidelity.
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12 Responses to “View Photoshop PSD thumbnails in Vista and Windows 7 Explorer”
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[...] That’s it, Windows Vista Explorer should soon begin to display thumbnails for all PSD files that were saved from Photoshop with the “Maximum Compatibility” option. As a side effect, WIC-aware image viewers such as FastPictureViewer Professional (http://www.fastpictureviewer.com) automatically benefit from the codec installation and uses it to open and display the same PSD files with full fidelity. via ghacks.net [...]

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Nice tips, but requires to download a big file for a little purpose.
Nice trick. Do you have any idea how to get thumbnails for Quicktime?
@Martin, @JK – We could also try ThumbView Lite, which is just ~500KB, and supports over multiple image types.
Does not work – tried on Vista 64 – does nothing. All PSDs saved in max compat mode so its not the files. Windows is a pathetic abortion – going Mac next time.
@sixgun
A 64 bit solution is in the works.
http://www.ardfry.com/psd-codec/
David: Do you have an estimate as to when the codec from Microsoft Expression Blend 3 will support 64bit?
Thanks.
@Aakash, I don’t have any idea: you’ll have to contact Microsoft about their codec.
The Ardfry PSD codec works just fine on 64 bit Windows.
@tysen
To have thumbnails also for Quicktime MOV files you can use the excellent and free Vista Codec Package: http://shark007.net
http://mysticcoder.net/MysticThumbs/
Mystic Thumbs does the job on x64. It has a x86 version, but it isn’t as good as this psdcodec system. But when it comes to x64, this free codec works great.
Wow~!! Thank you!!