Hi, I am experiencig a problem with exists() and its Windows implementation with GetFileAttributes API. I am using exists() prior to the scan of a directory to see if it exists; the fact is that on W2K (just tested it on that OS) after a day or two GetFileAttributesA() returns INVALID_FILE_ATTRIBUTES but the path does exists (it is a UNC-style path). After a restart of the app, all works fine. So, should I use exists() this way ? I don't know why not. Or just use directory_iterator and scan the hot-folder right away catching any exceptions ?. I don't want to iterate over a direcotry that doesn't exists if I could knew that in advance; besides, I don't know if that will work anyway. Does anyone know somthing about this GetFileAttributesA/boost::exists() behavior ? Thanks in advance, Sebastian.