I recieved the same error message at that point was sharing 1040 files. I did not notice if a slash was in file name or not. I thought there might be a file limit in windows OS. I moved all the shared files out and started sharing files again. Have not received error message again. This might be something that might need to be added as a feature to notify the user of a potential file name hazard. Limewire 2.2.1pro Thanks for your support.