Are you using WixStdBA or your own BA? I think it was in 3.8 where those messages were now being seen and interpreted by the engine, but I cannot remember if there were any callbacks to the UI. Even if there were, I don't remember WixStdBA having a dialog available to prompt the user.
Looking at my current fork I see: virtual STDMETHODIMP_(int) OnExecuteFilesInUse( __in_z LPCWSTR /*wzPackageId*/, __in DWORD /*cFiles*/, __in_ecount_z(cFiles) LPCWSTR* /*rgwzFiles*/ ) { return CheckCanceled() ? IDCANCEL : IDNOACTION; } Inside of the BalBaseBootstrapperApplication and: // OnExecuteFilesInUse - called when the engine encounters files in use while // executing a package. // // Return: // IDOK instructs the engine to let the Restart Manager attempt to close the // applications to avoid a restart. // // IDCANCEL instructs the engine to abort the execution and start rollback. // // IDIGNORE instructs the engine to ignore the running applications. A restart will be // required. // // IDRETRY instructs the engine to check if the applications are still running again. // // IDNOACTION is equivalent to ignoring the running applications. A restart will be // required. STDMETHOD_(int, OnExecuteFilesInUse)( __in_z LPCWSTR wzPackageId, __in DWORD cFiles, __in_ecount_z(cFiles) LPCWSTR* rgwzFiles ) = 0; On the interface. I don't see any WixStdBA implementation so the default would be IDNOACTION (equivalent to ignoring the running applications. A restart will be required.) -----Original Message----- From: Tobias Erichsen [mailto:i...@tobias-erichsen.de] Sent: Friday, March 07, 2014 1:41 AM To: wix-users@lists.sourceforge.net Subject: [WiX-users] Burn does not show close application warning during uninstall Hi everyone, I got a small problem during uninstall of my application. If I install/uninstall just with an MSI on W7 for example, I get the dialog that some applications must be closed before continuing install. When I use that MSI within my burn-bootstrapper, this dialog does not appear. Do I need to specify "DisplayInternalUI" to be able to see this dialog? My MSI does not have any UI otherwise... Best regards, Tobias PS.: All done with Wix 3.8 ------------------------------------------------------------------------------ Subversion Kills Productivity. Get off Subversion & Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951&iu=/4140/ostg.clktrk _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ Subversion Kills Productivity. Get off Subversion & Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951&iu=/4140/ostg.clktrk _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users