I am sending orders, canceling those orders and resubmitting them using VBA based upon various input parameters. I have about 150 stocks in Excel which I use as my front end. The problem I am running into is Redi crashes after a certain period of time, typically 30 min depending on market volatility and how much the program has to work. I will often get this response "Microsoft Excel is waiting for another application to complete an OLE action." I do not know if I am asking too much of Redi and Excel VBA and should use RediFix but I would like to not have to go that route. Thanks for any help!!