用InnoSetup生成的安装程序，安装成功后再点击Setup.exe卸载，最后出现安装，怎么去掉呢

Question

; 脚本由 Inno Setup 脚本向导 生成！
; 有关创建 Inno Setup 脚本文件的详细资料请查阅帮助文档！
#define MyAppName "examle"

[Setup]
; 注: AppId的值为单独标识该应用程序。
; 不要为其他安装程序使用相同的AppId值。
; (生成新的GUID，点击 工具|在IDE中生成GUID。)
AppId={{5EF80699-C8CA-464E-94A7-0A87A8841A22}}
AppName=example
AppVersion=1.5
;AppVerName=example 1.5
AppPublisher=我的公司
AppPublisherURL=http://www.example.com/
AppSupportURL=http://www.example.com/
AppUpdatesURL=http://www.example.com/
DefaultDirName={pf}\example
DefaultGroupName=example
OutputDir=F:\Test
OutputBaseFilename=setup
Compression=lzma
SolidCompression=yes
Uninstallable=yes
UninstallDisplayName=卸载 {#MyAppName}

[Languages]
Name: "chinesesimp"; MessagesFile: "compiler:Default.isl"

[Tasks]
Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked; OnlyBelowVersion: 0,6.1

[Files]
Source: "C:\Users\qinbo\Desktop\GMP\KnowledgeManagement.exe"; DestDir: "{app}"; Flags: ignoreversion
Source: "C:\Users\qinbo\Desktop\GMP*"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs createallsubdirs
Source: "C:\Users\qinbo\Desktop\GMP\plugins\instsall.bat"; DestDir: "{app}"; Flags: ignoreversion
; 注意: 不要在任何共享系统文件上使用“Flags: ignoreversion”

[Icons]
Name: "{group}\example"; Filename: "{app}\KnowledgeManagement.exe"
Name: "{commondesktop}\example"; Filename: "{app}\KnowledgeManagement.exe"; Tasks: desktopicon

[Run]
Filename: "{app}\KnowledgeManagement.exe"; Description: "{cm:LaunchProgram,example}"; Flags: nowait postinstall skipifsilent
Filename: "C:\Users\qinbo\Desktop\GMP\plugins\instsall.bat"; Flags: nowait

[Registry]
Root: HKLM; Subkey:"Software\Test\example";ValueType:dword;ValueName:config;ValueData:10;Flags:uninsdeletevalue
[Code]
//删除所有配置文件以达到干净卸载的目的
procedure CurUninstallStepChanged(CurUninstallStep: TUninstallStep);

begin

if CurUninstallStep = usUninstall then

//if MsgBox('您是否要删除用户配置信息？', mbConfirmation, MB_YESNO) = IDYES then

//删除 {app} 文件夹及其中所有文件

DelTree(ExpandConstant('{app}'), True, True, True);

end;

//把安装位置在安装的时候写进注册表中，更新安装的时候你读取注册表中已保存的路径
procedure InitializeWizard();
var ResultStr: String;
ResultCode: Integer;
begin
if RegQueryStringValue(HKEY_LOCAL_MACHINE, 'SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall{5EF80699-C8CA-464E-94A7-0A87A8841A22}}_is1', 'UninstallString', ResultStr) then
begin
ResultStr := RemoveQuotes(ResultStr);
Exec(ResultStr, '', '', SW_SHOWNORMAL, ewWaitUntilTerminated, ResultCode);
end;
end;

//检查版本号
function GetInstalledVersion(): String;
var
InstalledVersion: String;
begin
InstalledVersion :='';
RegQueryStringValue(HKLM, 'SOFTWARE\Microsoft\Windows\CurrentVersion', 'Installed version', InstalledVersion);
Result := InstalledVersion;
end

;//安装、卸载前检查关闭**进程

var
HasRun:HWND;

function InitializeSetup():Boolean;
begin

//检测运行应用程序
Result := true;
HasRun := FindWindowByWindowName('我的应用');
while HasRun<>0 do
begin
if MsgBox('安装程序检测到你的应用程序正在运行。' #13#13 '您必须先关闭它然后单击“是”继续安装，或按“否”退出！', mbConfirmation, MB_YESNO) = idNO then
begin
Result := false;
HasRun := 0;
end
else
begin
Result := true;
HasRun := FindWindowByWindowName('Gloud Arena');
end;
end;

end;

function InitializeUninstall(): Boolean;
begin
HasRun := FindWindowByWindowName('我的应用');
if HasRun<>0 then
begin
MsgBox('卸载程序检测到你的应用程序正在运行。' #13#13 '请先退出你的应用程序，然后再进行卸载！', mbError, MB_OK);
Result := false;
end
else
Result := true;
end;

[/code]

Answer 1

begin
ResultStr := RemoveQuotes(ResultStr);
Exec(ResultStr, '', '', SW_SHOWNORMAL, ewWaitUntilTerminated, ResultCode);
end;

  begin
     ResultStr :=RemoveQuotes(ResultStr);
     if MsgBox('You have to install the software, whether to remove the old version？', mbConfirmation, MB_YESNO) = IDYES 
     then 
     Exec(ResultStr,'/VERYSILENT','',SW_SHOWNORMAL, ewWaitUntilTerminated,ResultCode);
     Sleep(2000);
     end;