I’ve just created a VBScript ( Visual Basic Script ) on windows to help me automatize the process of resizing images, without having to do each photo manually.
and my code here on my pastebin account http://pastebin.com/J7UaMuY7 .
Be sure to save the code listed as plain text ( no .rtf/.txt/.whatever stuff ) and with .vbs extension.
Feel free to modify the code and/or to leave a comment to let me know if it helped you.
Successfully tested on Windows 7 and Windows XP.