While your notes client is up try copying a good copy of the file to the correct location. Close down the client and check the to make sure the new file is still intact ( did not get over ridden by closing down of notes client). If all is good you can email all you users a button that would with have code to copy the file over from a share or open a file for output an do print statements of all the lines needs in the new file.
At the end of you code you might want to instruct the user to reboot the pc.