I am aware that it is a batch process and I was not suggesting that be changed. I think the reason it needs to be a batch process is so that integrity checking on version numbers and permissions can be done. A preview service could be much simpler perhaps taking indidual .pm files or a large textbox and ignoring integrity checks. I can understand the issue with extra resources. I could provide such a service myself if I get a clear idea of what the code would be. On my last reading of this thread the jury seemed to be out on that.