Hi @Siga2000 ,   Thanks for clarifying about Dialog window that is of Preparing setup,my assumption and from the snapshot i got that as Normal window.As well Installscript dialog table will have entries of dialogs those are added to the setup.In your case that won't help. Since Preparing setup window comes from launcher itself that is of Installshield, it wouldn't be customizable. But you have an alternative for: Navigate to Releases->Release->Setup.exe tab->Set Small Initialization Dialog->Yes You can customize strings and other messages on this dialog by modifying 0x0409.ini which you will be able to see in your Release Folder(On uncompressed version of Setup) Hope it helps, Thanks, Jenifer ... View more