emfplugin is described as 'As of Windows Vista and Window 7, the Microsoft Windows Explorer no longer displays thumbnails image previews of EMF (Enhanced Metafile) and WMF (Windows Metafile) vector graphic images'. There are four alternatives to emfplugin for Windows, Mac and PortableApps.com. The best alternative is IrfanView. It's not free, so if you're looking for a free alternative, you could try SVG Explorer Extension or NX Studio.
A new image viewer that has nice features like identifying and generating colors from image, changing colors of image with color adjustment and color matrix tools, crop & split image for Instagram, TIF/GIF Animated extractor, batch functions.