Image resizer for Windows 7?

[Knipples]

Microsoft website is being its usual unhelpful self and the only one I can find is for XP, which when I try to download it, says its not compatible with my version of windows.

On my old laptop (which was XP) I used to just right click on the picture and it gave me the option to resize it. (because I had the image resizer)

Can anyone help, its for a friend who is trying to resize a pic, but she could send it to me and I do it. She has vista and can't download the XP one either.