I use Mystic thumbs and it works great for all file types directly in windows explorer 7 and 8.1, .psd works fine as well. Highly recommend, pays for itself in one day. http://mysticcoder.net/mysticthumbs.html
Hey, I don't mean to bring this thread back from the dead, but I googled "Windows 7 tga thumbs" and this was the third-ish result -- and it took me a while to actually find a decent link that worked for Win7 x64, which was here with some other Win7 workflow things: http://www.polycount.com/forum/showthread.php?t=68366 So…
I ran into a bunch of windows 7 64bit issues when it came to thumbnails and other things and created a thread about it a while back. I updated the thread as I found solutions. I got rid of irfan view because its thumbnail view was retarded and its icons for image files in list view all looked similar, I'm liking xnview…