Hi Macropod, yes that works great. In fact you have to go to each folder, it won't look into sub-folders but it did the job and saved a huge amount of time.

As for the error dialog box, I have discovered that by pure coincidence an update to Norton Internet Security 2012 came along the same day as I tried your first code; seems the Norton officeav.dll file is causing some problems and there are plenty of posts about it on the Internet. Disabling the Microsoft Office scan option in Norton stops it but how strange that it came along the same time as your code!

Thanks again from a cold Hampshire UK