Terminate setup on 32-bit Windows in Inno Setup

Question

I\'m using Inno Setup.

Can someone please tell me how to terminate the setup, if the Windows version is 32-bit?

Or to be more specific, when the setup star

Answer 1

Just return False from the InitializeSetup, when you detect a 32-bit system (using the IsWin64 function).

function InitializeSetup(): Boolean;
begin
  Result := True;

  if not IsWin64 then
  begin                     
    SuppressibleMsgBox('Error:The Windows version is 32bit', mbError, MB_OK, MB_OK);
    Result := False;
  end;
end;

See also Exit from Inno Setup Installation from [code].

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Or simply use the ArchitecturesAllowed directive.

See also:

• Does ArchitecturesAllowed Inno Setup directive concern CPU architecture or operating system architecture?
• Show a custom message for unsupported architectures.