For my project i need to do next:
It takes only 3 minutes, no configuration, just click-and-install
I would like to hide all controlls (progress bar, buttons, log list). Just logo and gif loading animation. All steps to create installer was done, so now i need to know could i do such customization or not?
Create simple NSIS installer with SILENT flag.
Use Exec to execute Silverlight and XAP installation (also in quiet mode) and filanne use ShellExecute to open a XAP file.