It is possible to copy and paste to and from a PuTTY window. This tutorial will show you how to do that. Click and drag to make a selection and copy it to your clipboard. Click off of the selection to deselect it. Copy and paste an SSH command weve stored in a different Notepad window that we already have open. Right-click and Copy is very easy, but different from the way its done in most other programs. You can also select and copy a rectangular region. For example, this is useful to copy just the filenames in this directory listing.”]
Source: http://kb.site5.com/shell-access-ssh/putty/putty-how-to-copy-and-paste-to-and-from-a-putty-window/