You’re looking for a simple hassle-free photo album generator for Windows then I recommend you take a look at Porta.
I have been using it for a few weeks now and I’m very impressed with it. It’s simple to use, fast and produces nice looking photo albums. Best of all – it’s free, although I’m sure the author wouldn’t mind a donation if you’re feeling generous 
You simply select the folder containing your photos, select a theme and that’s it. You also have the option to enter captions for each photos. The end result is impressive. You can then easily upload the photo album (which consists of an HTML page and a bunch of sub-folders containing the photo images) to your web site. People who visit your web site can then view the photos in a variety of formats, the one I really like is sandbox where you can get an overview of the entire photo album.