Source:
http://www.wowinterface.com/downloads/i ... PView.htmlBLPView
Version: 1.2 by: Foxlit
BLPView is a thumbnail provider shell extension, allowing Windows to display thumbnails and previews of BLP images. BLPView can be installed on both 32- and 64-bit versions of Windows Vista and Windows 7.
Note that BLPView only previews BLP images -- it does not allow you to convert them to other formats or open them in other applications.
Installation instructions
The ZIP contains an executable installer that will extract the appropriate version of the BLPView shell extension, and install it in Program FilesBLPView. You should be able to view BLP thumbnails in Windows Explorer immediately after the installation completes.
You may uninstall BLPView at any time by using the Programs and Features Control Panel item.
Thanks to Near for the Tip!