filesystemwatcher filters

I am using about 5 different filesystemwatcher routines total.
I am using the following code:

Code:

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filewatch.NotifyFilter = NotifyFilters.CreationTime Or NotifyFilters.LastWrite
        AddHandler filewatch.Created, AddressOf addfile
        AddHandler filewatch.Changed, AddressOf addfile
        filewatch.EnableRaisingEvents = True

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However, there is one problem with it... whenever I open a file and change stuff, then close it without saving the changes, the events still fire. I am opening excel workbooks in code, then use xlsWB.Close(SaveChanges:=False) to close them, and the event still fires, where the file isn't really changed so it should not fire.

When I tried this I noticed that each time I opened an Excel file the date modified changed in my directory to the current date/time and then when I closed the file it changed back to the files original date/time. So, from looking at the file it appeared not to have changed the date modified property of the file, but, actually changed it twice.

Try opening a directory in Windows Explorer where an old Excel file is. Open the file and see if the time stamp changes. Then close the file without making any changes and see if it then changes back. Both of these events would cause your code to enter the addfile handler.