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Revert "NSIS: Create a mutex to ensure only one installer is running" (#23540)

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This reverts commit 530c7d1bbd.
The installer uses the `UAC` plugin which creates two instances of the
installer when launched. One runs with admin privileges while the other
with user privileges. Creating a mutex in the first instance stops the
other one from continuing.

PR #23540
This commit is contained in:
sledgehammer999
2025-12-06 11:08:30 +02:00
committed by GitHub
parent a59238f4ea
commit 73c15e1f00
59 changed files with 14 additions and 128 deletions
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12
dist/windows/installer.nsh vendored
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@@ -112,18 +112,6 @@ SectionEnd
;--------------------------------
Function .onInit
; create a mutex to ensure only one installer is running
System::Call 'kernel32::CreateMutex(p 0, b 0, t "qbt_installer") p . r1 ?e'
Var /GLOBAL CreateMutexResult
Pop $CreateMutexResult
IntCmpU $CreateMutexResult 183 isDuplicateInstance isUniqueInstance isUniqueInstance
isDuplicateInstance:
MessageBox MB_OK|MB_ICONEXCLAMATION $(inst_already_running) /SD IDOK
SetErrorLevel 183 # WinError.h: `ERROR_ALREADY_EXISTS`
Abort
isUniqueInstance:
!insertmacro Init "installer"
!insertmacro MUI_LANGDLL_DISPLAY