I have been using YEMUZIP for about 8 months now and have had issues with since day one but have continued to use it. Jessup suggested I try another zip program and that does work sort of but only the first time and then stops working. A friend of mine with the same level system (10.4.11) has the same difficulty. I tried zipfiles_for_pc and experienced the issue that it works for the first time and then does not work again. The ZIPFILES_for_PC again works first time and then does not work again(meaning it sits there and no windows open) . YEMUZIP works for about 8 times (semi variable) and then crashes. I restart it and again it works for around 8 times and then crashes. Both vendors say its not their problem. Can someone suggest a way to figure out where the problem is or suggest another product, please, thanks. Ed FWIW System is 10.4.11 6 Gig memory G5 SIlver Pro multiple drives (internal & external) NO (AFAIK) hacksies on the system that I know of. Nothing significant running when this occurs (MAIL,SETI,ICAL,HOGWASHER,safari,Graphic Convertor several weather apps,net monitor,address book, finder) Anyone? Ed