Hi @chilakamarthi81, Thank you for your post. Please accept our apologies for the delayed response. The following response applies to only the following project types: Basic MSI InstallScript MSI The documentation at the following link discusses how to get and set INSTALLDIR via a VBScript custom action: https://community.flexera.com/t5/InstallShield-Knowledge-Base/Retrieve-and-Set-Properties-in-a-VBScript-Custom-Action/ta-p/4439 For a PowerShell custom action, you could try the PowerShell cmdlets discussed in the documentation at the following link: https://docs.revenera.com/installshield28helplib/helplibrary/CAPowerShell.htm Please give these suggestions a try. Do they work for you? Please let us know if you have any questions or concerns. Thanks! ... View more