>>That's happened to all of us (posting only to have the answer come to mind within moments of hitting "Send"). I don't mind in the least it being in C++, and you're quite welcome. For this project, FindFirstFile might be overkill.
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>I've had a quick look at FindFirstFile(). I will look in more detail over the weekend. It won't be of any use in this project as, prior to needing CreateFile(), I have scanned the disk for a file list which this uses so the files should be there and a quick check on CreateFile() return will tell me otherwise.

What I meant by "overkill" is that FindFirstFile returns more information than you actually need. Really the only thing to recommend it is that it accomplishes two tasks at the same time.