How to use Notepad++ to find files in a directory that do not contain string

Make sure 'Regular expression' is selected in Search Mode.

Use the following regex to get all the files which don't contain 'Text goes here':

(?s)\A((?!Text goes here).)+\z

You could always use the good old DOS / Command prompt and do something like this:

find /c /i "footer.asp" c:\inetpub\mywebsite\*.* | find ": 0" /v

This will give you a list of the number of times that the search term occurs in the files in the directory, the second find operation that the first is piped through makes it even more sexy by filtering out the results from the first that you aren't interested in.

You might want to change the * . * to *.asp though if you are only hunting through ASP files and you are only interested in looking through ASP files.

FIND doesn't work with recursing sub directories unfortunately but you could experiment with the slightly more complicated FINDSTR command if this doesn't do the trick.