How can I stop application which has many WNDTITLE

Hi all,
I used FindWindow to find my application is run or not?
But my problem is:
+When I use FindWindow, I need know WNDTITLE to check my application to run it or not

 FindWindow $0 "${WNDCLASS}" "WNDTITLE"

But my application is chat program. So user login on my application, WNDTITLE is changed to depend on nickname which they 's chatting.
How can I check this application to run or not if user uses this nickname?
I think I should get handle of main application, but handle can change when we run it again.
Please help me!
My word is too bad 🙂, If you do not know, please tell me!
Thank a lot, 😛

Hi sunlight112!

I was wondering if this might be of any help.



Cheers

Bruno

Thank bholliger for quickly reply, 🙂
I will check it . I think It can help me!
Thank a lot,

http://nsis.sourceforge.net/FCT_plug-in also searchs by title/class fragment.