Hey, Patch looks good, one question below: On Sat, Oct 20, 2012 at 01:21:10AM +0200, Marc-André Lureau wrote: > +Function .onInit > +retry: > + System::Call 'kernel32::CreateMutexA(i 0, i 0, t "VirtViewerMutex") i .r1 ?e' I don't really understand the i.r1 here, is it needed? http://nsis.sourceforge.net/Allow_only_one_installer_instance also warns against CreateMutexA when using a unicode nsis, have you checked the mutex name or are you sure we are not using a unicode nsis? Christophe
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