Where are they? I only deleted the one in C:\Program Files\Windows Photo Gallery.
But I work on Vista.
And you have to associate your image files with another viewer first or you'll get an error message if you try to open an image <LOL>.
You might have to do it again afterwards, which is why I suggested Irfanview, who gives a nice light viewer with the option to associate all the image files in one go and if you use the icons.dll plugin irfanview will use different icons for each filetype if you care for that. I don't, since I have my view set to thumbnails ;)
And if I remember correctly I also had to reboot to get rid of the dll.
Did a lot of rebooting recently, because of a clean install and one of the first things I wanted to get rid of was this!
And don't get me started on stopping MS from things - I just spend the best part of two days trying to find out why my Paintshop Pro plugins wouldn't work anymore, where they were working perfectly fine in the same version of Paintshop Pro and on the same OS in my previous install.
I just found out that is because this time I installed MS Office2010. Is that nuts or what???
Edit: posting a screenshot of your Photogallery folder would be nice, so I'd have an idea of what it looks like in 7 :)