Hi, I built a basic msi project with installshield 12. My install package is a single msi file. I got the same message ("The setup must update files or services that cannot be updated whille the system is running. If you choose to contine, a reboot will be required to complete the setup") but not at the same time. I'm not upgrading, i'm just trying to uninstall my msi. My msi install a service and starts it, so when i'm trying to uninstall, at the "validating install" step, i got this message. I also would like to avoid this message because anyway i need to reboot. Looks like this warning doesn't appears on XP. ... View more