i have this issue and m not aware how to fix it. Whenever i install the latest build of the MSI file over the previous build with the application running,the installation (rather upgrade) takes place without giving a pop up or warning such as " required files in use, please shut down the application for the installation to take place". I want the warning to pop up.How can i get it done?? Please help.
What type of project is it? I'm no expert but I think if it's an InstallScript MSI you can customize the OnResumeUIBefore function to see if it's running etc. Or for a plain InstallScript project customize OnUpdateUIBefore. You can call the abort function if your code decides its not safe to do an upgrade.
The MSI help topic "InstallValidate Action" describes what happens automatically; as a result of the FilesInUse dialog box not being displayed, is your installer prompting for a reboot at the end?
MSI displays the in-use dialog box (and, if the user ignores the warning, a reboot dialog box at the end) only if the file is actually going to be replaced (or uninstalled). Perhaps the executable isn't going to be overwritten?
