Hi Alex, I have developed a system based application for my client with front end in vb.net and back wnd in access 2007. pls check documnetation 5:55 PM Jasmeet said. Hi, can't say for sure what is a best way, depends on installer, but should be a way to include msi in setup. You must complete that installation before continuing this one. msi files the database engine setup fails with error 1500: 'Another installation is in progress. I need to include this database engine setup file in my application's installer, but since both of them are.