From Fox Magic Software:
Path Copy is a tiny utility that extends your file manager. It can copy a full path to the file/folder to Clipboard using the context menu command. For example, you can copy a path to the file from your file manager and paste it into the 'File Open' dialog of another program. As a rule it's faster than selecting a file anew. You can also insert that path into the text document. Note, that your file manager must support the context menu of Explorer.