View thumbnails and convert even rare image formats in Windows Explorer, with SageThumbs
SageThumbs is a free shell extension that will let you preview even vary rare image formats not supported directly by Windows Explorer. It will also let you convert instantly (by right click) the most common image formats.
Extended thumbnail image view in Windows Explorer folders * Thumbnail image in context sub-menu * Extended info tips * Support of 162 image formats (224 extensions) via GFL Library * Support of additional 26 image formats via XnView plugins (if installed) * Send images by mail * One-click conversion to popular image formats * Set Wallpaper with options * Copy to clipboard
SageThumbs can use external XnView plugins; it tries to automatically detect the XnView installation folder, but it can use any predefined folder.