I don't know of "e-mail this foto", but right clicking on the photo in Explorer, then choose Sent to..., then choose 'e-mail recipient' (there might be several variations, try all) worked with me.
In the past, if I had a picture up on Windows, I could click on "e-mail this photo", and it would give me pop-up box that asked if I wanted to make the picture small, or send original size. Then it would take me to my Outlook Express screen, and I could type in the name of the recipient, and it would send it in about 10 seconds. Now, the e-mail screen looks a bit different, and it never "attaches" the photo. Anybody know how to fix this? - rankrum