[WiX-devs] Deleting an exe file that was launched during Uninstall

[Imri L. <im...@sp...>]

Hi all,

Iv'e got the following problem:

On the uninstall of my application I call an external wrapper
(uninstall.exe, basically an nsis script that asks the user if they want to
uninstall custom user data created during the product's life span or not).
This works and if the user choses to delete the custom user data, the
uninstall.exe wrapper runs first deleting the custom user data and the WiX
cleans up the rest. The only problem is that the uninstall.exe wrapper gets
left in the application directory and i don't know how to get rid of it...
Iv'e tried using QtExecCmdLine to remove it via the command line, like so:

<Property Id="QtExecCmdLine" Value='"[SystemFolder]\Cmd.exe" del
"[APPLICATIONFOLDER]\uninstall.exe"'/>
 <CustomAction Id="QtExecute" BinaryKey="WixCA" DllEntry="CAQuietExec"
Execute="immediate" Return="check"/>

<Custom Action="QtExecute" After="InstallFinalize"/>

But during the Uninstall when the Qt Custom Action runs, the command line
gets stuck on the command and i have to manually close the command
line(running in the background) with a program like Windows Defenders
Software Explorer. No error is being reported by the Verbose Debugger.

MSI (s) (F8:1C) [14:12:14:753]: Doing action: QtExecute
MSI (s) (F8:1C) [14:12:14:753]: Note: 1: 2205 2:  3: ActionText
Action 14:12:14: QtExecute.
Action start 14:12:14: QtExecute.
MSI (s) (F8:CC) [14:12:14:753]: Invoking remote custom action. DLL:
C:\Windows\Installer\MSI2FBF.tmp, Entrypoint: CAQuietExec
MSI (s) (F8:34) [14:12:14:753]: Generating random cookie.
MSI (s) (F8:34) [14:12:14:768]: Created Custom Action Server with PID 3156
(0xC54).
MSI (s) (F8:40) [14:12:14:800]: Running as a service.
MSI (s) (F8:40) [14:12:14:800]: Hello, I'm your 32bit Impersonated custom
action server.
MSI (s) (F8!5C) [14:12:14:831]: PROPERTY CHANGE: Deleting QtExecCmdLine
property. Its current value is '"[SystemFolder]\Cmd.exe" del
"[APPLICATIONFOLDER]\uninstall.exe"'.
CAQuietExec:  Microsoft Windows
CAQuietExec:  Copyright (c) 2006 Microsoft Corporation.  All rights
reserved.
CAQuietExec:
Action ended 14:12:38: QtExecute. Return value 1.
Action ended 14:12:38: INSTALL. Return value 1.

Any suggestions would be greatly appreciated.

Thx,

Imri