Inno Setup 安装、卸载前检测进程或服务

[转载]Inno Setup 安装、卸载前检测进程或服务

1、32位程序的PSVince.dll插件方法。

[Files]
Source: psvince.dll; Flags: dontcopy

[Code]
function IsModuleLoaded(modulename: AnsiString ):  Boolean;
external 'IsModuleLoaded@files:psvince.dll stdcall';

2、PSVince控件在64位系统（Windows 7/Server 2008/Server 2012）下无法检测到进程，使用下面的函数可以解决。

function IsAppRunning(const FileName : string): Boolean;
var
FSWbemLocator: Variant;
FWMIService   : Variant;
FWbemObjectSet: Variant;
begin
Result := false;
try
FSWbemLocator := CreateOleObject('WBEMScripting.SWBEMLocator');
FWMIService := FSWbemLocator.ConnectServer('', 'rootCIMV2', '', '');
FWbemObjectSet := FWMIService.ExecQuery(Format('SELECT Name FROM Win32_Process Where Name="%s"',[FileName]));
Result := (FWbemObjectSet.Count > 0);
FWbemObjectSet := Unassigned;
FWMIService := Unassigned;
FSWbemLocator := Unassigned;
except
if (IsModuleLoaded(FileName)) then
begin
Result := false;
end
else
begin
Result := true;
end
end;
end;

这里，有可能存在异常：Exception: SWbemLocator:依赖服务或组件无法启动

解决办法参照如下步骤：

1.在命令提示行运行以下命令：

cd /d %windir%system32wbem

rename Repository Rep_bak

2.建一个.bat批处理文件并运行，内容如下：

Mofcomp C:WINDOWSsystem32WBEMcimwin32.mof

Mofcomp C:WINDOWSsystem32WBEMcimwin32.mfl

Mofcomp C:WINDOWSsystem32WBEMsystem.mof

Mofcomp C:WINDOWSsystem32WBEMwmipcima.mof

Mofcomp C:WINDOWSsystem32WBEMwmipcima.mfl

3.在命令提示行运行以下命令：

cd /d %windir%system32wbem

for %i in (*.mof,*.mfl) do Mofcomp %i

4.重新注册 WMI 组件，在命令提示行运行以下命令：

cd /d %windir%system32wbem

for %i in (*.dll) do RegSvr32 -s %i

for %i in (*.exe) do %i /RegServer

//安装，并在安装前检测程序是否在运行，如果运行先结束进程

function InitializeSetup(): Boolean;
begin
Result := true;
if  IsAppRunning('{#MyAppExeName}') then
begin
if MsgBox('安装程序检测到 {#MyAppName} 正在运行！'#13''#13'单击“是”按钮关闭程序并继续安装；'#13''#13'单击“否”按钮退出安装！', mbConfirmation, MB_YESNO) = IDYES then
begin
TaskKillProcessByName('{#MyAppExeName}');
Result:= true;
end
else
Result:= false;
end;
end;

//卸载，与安装类似

function InitializeUninstall(): Boolean;
begin
Result:= true;
if  IsAppRunning('{#MyAppExeName}') then
begin
if MsgBox('卸载程序检测到 {#MyAppName} 正在运行！'#13''#13'单击“是”按钮关闭程序并继续卸载；'#13''#13'单击“否”按钮退出卸载！', mbConfirmation, MB_YESNO) = IDYES then
begin
TaskKillProcessByName('{#MyAppExeName}');
Result:= true;
end
else
Result:= false;
end;
end;