Information about the Marketplace Client and Custom UIhttp://blogs.msdn.com/b/mikefrancis/archive/2009/11/01/information-about-the-marketplace-client-and-custom-ui.aspxI just posted on the Windows Mobile Developers team blog: The Windows Marketplace for Mobile Client and your Setup code . This article reviews some potential ‘gotchas’ if you include custom UI in your setup DLL that is being called by the Marketplaceen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)