1.
Open Windows Explorer and search for the desired file. Hold down the "Shift" key and simultaneously click with right mouse button on the desired file. Only this way the context menu shows the context menu entry "Copy as path". This way allows copying the complete path detail of the file into the Windows clipboard.
Now drag and drop the file to the taskbar. Next, click with right mouse button on the "Notepad" icon in the Taskbar and then again with the right mouse button on "Notepad". In the context menu select "Properties".
2. Please refer to http://www.unawave.de/windows-7-tipps/file-to-taskbar.html?lang=EN