mmsajid
3rd December 2008 10:38 UTC

Closing an existing application from NSIS befor installation starts.
Hi,

It would be great if someone can answer the below question.

How can I identify if the application(MyApp.exe) is running and if it is running I would like to close it before my installation begins.

Thanks for reading the question.

barx
3rd December 2008 11:08 UTC

to kill the application:
ExecWait `taskkill /im MyApp.exe`

mmsajid
3rd December 2008 11:28 UTC

Excellent !!!
Thanks Barx...

Anders
3rd December 2008 20:14 UTC

thats probably not the best solution, taskkill does not exist on all systems. You are probably better off checking for a mutex or window class and tell the user to close down your app

barx
4th December 2008 13:20 UTC

I agree but ... do you know how to do this ?

Animaether
4th December 2008 14:57 UTC

In its most basic form...

_retry:
FindWindow $0 "Class or Titlebar text"
IntCmp $0 0 _done
  MessageBox MB_OK "Please close [application]"
  goto _retry
_done: