Do you have a lot of image formats that Windows Explorer won’t show as a preview? Do you have other image file types besides JPG, GIF or BMP? Chances are you have PCX, TGA, PSP or PSD files that would be nice to preview. Well ThumbView is the program you are looking for. It’s free and open source. It works with Windows 2000/XP/2003. It requires that .NET Framework 1.1 be installed on the computer, but it has a console version that doesn’t require that (which I couldn’t quite figure out). But you can download the .NET Framework 1.1 off of Microsoft’s site for free anyway.
note: If you install .NET Framework on XP, you’ll probably get the login issue. It asks for a password even if you don’t have one or have one setup to login automatically. See the following forum thread on how to correct that.
To see the previews in Windows Explorer you need to have the display set to Tiles, Thumbnails or have one highlighted. I kind of wish it would do it at the icon level, like Photoshop 7 used to do previews, but even the newer Photoshop versions stopped doing that. Overall it’s definitely a nice tool to have, especially if you have a ton of images or pictures.
The site lists the following supported file types:
.cut, .dcx, .dds, .mdl, .mng, .pcd, .pcx, .pic, .pix, .png, .pnm/.pbm/.pgm/.ppm, .psd/.pdd, .psp, .pxr, .sgi/.rgb, .tga/.vda/.icb/.vst, .tif/.tiff, .wal, .xpm.