I never got this to work myself and ended up using a custom action to send a command line argument to the application that could be running to shut itself down.
and then put this into the InstallExecuteSequence: FileKey "App1EXE" refers to the variable you used to specify the install location for the application 1's .exe file, you can use that variable here. In my case I wanted it to close down automatically, so I specified the command line argument "-quitself" to send the mutex-holding application into a shutdown procedure. You could make the application display a confirmation box or whatever else you wanted before proceeding with closing. * * * Is there a stable release of v3.9 on the horizon? I see that v3.8 is still the latest stable on the WiX Toolset homepage. -- View this message in context: http://windows-installer-xml-wix-toolset.687559.n2.nabble.com/util-CloseApplication-and-EndSessionMessage-tp7593146p7593158.html Sent from the wix-users mailing list archive at Nabble.com. ------------------------------------------------------------------------------ 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