I'm currently demoing ThinApp. I've been able to create simple apps (IE7, 7Zip, ect) but I'm having trouble with a more complex app. The application I'm talking about is called Raisers Edge (not sure that matters). When you run the setup executable it searches for the prerequisite applications, installs what you need, then installs the main application. The prerequisite applications it checks for are MDAC 2.8, Dot Net 2.0, Visual Basic 2627.01, Crystal XI Runtime. We still run quite a few Windows 2000 machines so I created the ThinApp on a clean W2K VM. The application runs but I get these Windows Installer pop ups anytime the app loads or I perform a query. The pop-ups are more like flashes that go away without closing them. I do not see the same condition on the machine I captured the install on. The package is large (1.6gb). I'm not sure if that's part of the problem?