watch certain files within certain folder

[evios]

I'll try to explain what it means:

I have many folders and within folders, there are another folders with files inside. So to make things easy, i set

Watcher.IncludeSubdirectories = True
        Watcher.Filter = "Index.txt"

So that any files with Index.txt will be used. How if i just need the Index file within NORMAL folder?
How can i make it?
P/S: There are many subdirectories inside, using abcdef/ghijklm/nopqrs/tubfh/.........is very rediculuos...any simple method?
Thanks......