What is the best product for me to create an install file that will update an egsisting install on another machine. I have an app that has been sent out to about 30-40 centers in ny, it is a photo archival application. I need to send updates out, including an updated .exe updated images, data, and crystal reports. At present if I try to run an install on a machine I keep getting the, this product has already been installed. I have VFP 8 with the Install Shield 4 Express Limited, would purchasing the Full Express fix this.