Single installer instance

aloknarula · 14th September 2006, 09:33

Hi,

Can anybody tell me how to restrict launch of installer if one instance is already running.

Thanks in advance.
Alok

aloknarula · 14th September 2006, 09:43

Got it.

Put the following code in your .onInit function:

System::Call 'kernel32::CreateMutexA(i 0, i 0, t "myMutex") i .r1 ?e'
Pop $R0

StrCmp $R0 0 +3
MessageBox MB_OK|MB_ICONEXCLAMATION "The installer is already running."
Abort
'myMutex' should be replaced by a unique value.

CrushBug · 14th September 2006, 15:50

Search and the Wiki are your friend!

14th September 2006, 09:33	#1
aloknarula Junior Member Join Date: Sep 2006 Posts: 2	Single installer instance Hi, Can anybody tell me how to restrict launch of installer if one instance is already running. Thanks in advance. Alok

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14th September 2006, 09:43	#2
aloknarula Junior Member Join Date: Sep 2006 Posts: 2	Got it. Put the following code in your .onInit function: System::Call 'kernel32::CreateMutexA(i 0, i 0, t "myMutex") i .r1 ?e' Pop $R0 StrCmp $R0 0 +3 MessageBox MB_OK\|MB_ICONEXCLAMATION "The installer is already running." Abort 'myMutex' should be replaced by a unique value.

14th September 2006, 15:50	#3
CrushBug Senior Member Join Date: May 2005 Posts: 119	Search and the Wiki are your friend!