Hi Russell, During compression, if any one File is open exclusively then OnMessage event gives 'File Size changed while zipping' and the control does not come into OnSkipped event. I have tried making all the NoSkipping options=True. Worst still, is that the compression is aborted and Zip disappears. Please treat this matter as urgent. I am using Delphi 2007 with ZipMaster 1.9.0.0095 Regards Allan ----------- To unsubscribe from this list, send an empty e-mail message to: delphizip-request@xxxxxxxxxxxxx and put the word unsubscribe in the subject.