Execute postinstall program with administrator privileges in Inno Setup

问题

I'm trying to run another installer at the end of the installation (postinstall). The installer needs administrator provileges. So PrivilegesRequired=admin was added and the error still was there.

Error message below:

Unable to execute file:
C:\Users\User1\AppData\Local\Multi Webcam Video Recorder\webcam.exe

CreateProcess failed; code 740.
The requested operation requires elevation.

#define MyAppName "Multi Webcam Video Recorder"
#define MyAppExeName "webcam.exe"

[Setup]
AppName={#MyAppName}
PrivilegesRequired=admin

[Files]
Source: ..\src\webcam.exe; DestDir: {localappdata}\{#MyAppName}; Flags: ignoreversion

[Run]
Filename: {localappdata}\{#MyAppName}\{#MyAppExeName}; Description: {cm:LaunchProgram,{#MyAppName}}; Flags: nowait postinstall skipifsilent

回答1:

With postinstall flag, the program is by default executed with original permissions, even if the installer itself is running with Administrator permissions. To keep the (Administrator) permissions of the installer, add runascurrentuser flag:

[Run]
Filename: {localappdata}\{#MyAppName}\{#MyAppExeName}; \
    Description: {cm:LaunchProgram,{#MyAppName}}; \
    Flags: nowait postinstall skipifsilent runascurrentuser

来源：https://stackoverflow.com/questions/60434553/execute-postinstall-program-with-administrator-privileges-in-inno-setup