问如何在安装期间记录用户输入，以便在卸载时使用？

EN

[Code]
var
  UserPage: TInputQueryWizardPage;

procedure InitializeWizard;
begin
  UserPage := CreateInputQueryPage(wpWelcome, 'Caption', 'Description', '');
  UserPage.Add('Service name:', False);
end;

procedure RegisterPreviousData(PreviousDataKey: Integer);
begin
  SetPreviousData(PreviousDataKey, 'ServiceName', UserPage.Values[0]);
end;

function InitializeUninstall: Boolean;
var
  ServiceName: string;
begin
  ServiceName := GetPreviousData('ServiceName', '');
  if ServiceName <> '' then
    MsgBox('The value entered before: ' + ServiceName, mbInformation, MB_OK);
end;