I have an application installed, and when I click on the shortcut to it from the start menu I am first prompted by the MSI installer and a UAC prompt. If the I allow the specified .msi file (C:\Windows\Installer\something.msi) to run, then the standard Windows installer window for the application shows up briefly with a progress bar and then my application runs. This happens every time.
If I just double-click the .exe that the shortcut points to in Program Files, then I don't see this. I've tried uninstalling and reinstalling several times. I have a feeling there is something broken in the windows installer database (if such a thing exists). Is there a tool or something that could help diagnose this issue?