We have a computer that has lost the ability to create zipped folders. This has been this way for several months and when it began is unknown so a system restore is not going to work. I have tried putting the command back in the send to folder from the Default Users profile but this does not work. I have tried to issue this command from the run command box "rundll32 zipfldr.dll,RegisterSendto" but it gives this error; "Error in zipfldr.dll Missing entry: RegisterSendto". I ran sfc /scannow three times with no change in the situation. Any ideas? I can reload but if I can salvage this install install I would prefer that choice.