I have an Install Script msi installer prepared in InstallShield 2009 in Windows XP environment. Now I have upgraded the same installer using InstallShield 2021 R2 in Windows 10 environment. All details remain same (product Code, Product Name, Upgrade Code, Package code). Both are licensed version. In windows 10 environment I installed the application prepared by the installer 2009. After that I upgrade the application using the installer prepared by 2021R2 (upgrade of the installer prepared in install shield 2009). The upgrade happens without any problem. But during uninstallation I encountered the error "1316 - The specified account already exists". Clicking OK getting the error "1603 - Fatal error during installation. Consult windows installer help MSI.chm or MSDN for more information". Appreciate any resolution to the issue. Regards, Saurabh         ... View more

I am using Trial version InstallShield 2021 for evaluation purpose. Want to install .NET FW 4.8 as prerequisite. Trying the installation in Windows 10 version 1709 which don't has .NET 4.8 but has .NET 4.7. I have checked the prerequisite in the Redistributable section in the project. During installation it is starting the installation of .NET 4.8, completes the process and reboot the system but the installation of .NET 4.8 is not reflected in the registry. (showing .NET 4.7). So when I am again checking the registry and tried installation of .NET 4.8 by executing ndp48-x86-x64-allos-enu.exe using LaunchAppAndWait function from Install script, the installation started but expecting the InstallShield installer to get stopped. Selecting Yes is NOT stopping the InstallShield installer and the installation does not proceed. It is showing another installation in progress.    I have also tried using the InstallShield 2009 and followed the Install script technique as described above but same result at the end. How can I install .NET Framework using the InstallShield installer. Appreciate a solution for this issue for both version of InstallShield 2009 and 2021. ... View more