紧急求助 C++到C#的代码转换

在C++ Builder的工程文件中有以下的代码，以下代码实现的机能要用C#来实现（也就是在C#下实现下面C++的代码），希望高手能帮忙解决下，不胜感激。WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int)  
{ 
    HANDLE        di_p_mutex;   
    int           di_s4b_result;   
    OSVERSIONINFO di_t_version_infomation; 
    bool          di_b_result; 
    bool          di_b_exists_result[JE_SV_COMM_VARIABLE_INI_S4B4];   // 文件夹判定用
    int           di_s4b_count;                                       // 循环变量
    AnsiString    di_s_dialog_message;                                // 对话框表示消息    memset( di_b_exists_result, true, sizeof(di_b_exists_result) );   // 判定結果初期化
    di_s_dialog_message = “”;                                       // 消息
    try  
    {
        di_p_mutex = 
            OpenMutex( 
                MUTEX_ALL_ACCESS,
                false,
                JE_SV_APPLICATION_NAME
                );
        if (di_p_mutex == NULL) 
        {
            CreateMutex(NULL,true, “测试用应用程序”);
        }
        else 
        {  
            Application->MessageBoxA(
                “消息内容”, 
                “标题”
                MB_TOPMOST+MB_ICONSTOP+MB_OK); 
            return JE_SV_APPLICATION_RETURN;
        }         di_t_version_infomation.dwOSVersionInfoSize =
            sizeof(di_t_version_infomation);        GetVersionEx(&di_t_version_infomation);                 // windows的版本信息取得        switch(di_t_version_infomation.dwPlatformId) 
        { 
            case VER_PLATFORM_WIN32_NT :                        // WindowsNT,2000,XP
                break; 
            case VER_PLATFORM_WIN32s :                          // Windows95以前
            case VER_PLATFORM_WIN32_WINDOWS :                   // Windows95,98,Me
            default :                                           // 其他
                Application->MessageBoxA(                       //
                    “消息内容”
                    “标题”
                    MB_OK + MB_DEFBUTTON1 + MB_ICONERROR); 
                return JE_SV_APPLICATION_RETURN;
        }
        
/* 文件夹有无的判断 *、
        di_b_exists_result[0] = 
            DirectoryExists( “C:\Documents and Settings”);        di_b_exists_result[1] =
            DirectoryExists( “C:\Documents and Settings\All Users”);        di_b_exists_result[2] = 
            DirectoryExists( “C:\Documents and Settings\All Users\Favorites”);        di_b_exists_result[3] =
            DirectoryExists( "C:\Documents and Settings\Administrator");         for ( di_s4b_count = 0
              di_s4b_count < 4
              di_s4b_count++ )
        {
            if ( di_b_exists_result[di_s4b_count] != true ) 
            { 
                di_s_dialog_message +=                          // 文件夹名连接
                    “\n” +
                     "."+ 
                    "文件夹名";
            } 
        }        if ( di_s_dialog_message != “”)
        {
            di_s_dialog_message = 
                “文件夹做成”+ 
                di_s_dialog_message;            di_s4b_result =
                Application->MessageBoxA(
                    di_s_dialog_message.c_str(),  
                    “标题”,
                    MB_TOPMOST+MB_ICONINFORMATION+
                    MB_YESNO);
            if (di_s4b_result == IDYES)
            {
                for ( di_s4b_count = 0;
                      di_s4b_count < 4;
                      di_s4b_count++ )
                {
                    if ( true != 
                             di_b_exists_result[di_s4b_count] ) 
                    {
                        di_b_result =                           // 文件夹作成
                            CreateDir(“C:\Documents and Settings”.c_str());
                        if ( di_b_result != true )
                        {
                            Application->MessageBoxA(
                                “创建文件夹”, 
                                “标题”, 
                                MB_TOPMOST+MB_ICONSTOP+MB_OK);
                            return JE_SV_APPLICATION_RETURN;
                        } 
                    } 
                } 
            } 
            else
            {
                return JE_SV_APPLICATION_RETURN;
            }
        }
        Application->Initialize();
        Application->Title = 
            JE_SV_APPLICATION_TITLE;
        Application->CreateForm(__classid(TMainForm), &MainForm);
         Application->CreateForm(__classid(TVersionForm), &VersionForm);
         Application->CreateForm(__classid(TLoopCountForm), &LoopCountForm);
         Application->CreateForm(__classid(TOptionSetForm), &OptionSetForm);
         Application->CreateForm(__classid(TPauseForm), &PauseForm);
         Application->CreateForm(__classid(TSingleOperationSvForm),&SingleOperationSvForm);
         Application->CreateForm(__classid(TSingleOperationFileForm), &SingleOperationFileForm);
         Application->CreateForm(__classid(TSingleOperationEmForm), &SingleOperationEmForm);
         Application->CreateForm(__classid(TFileSelectForm), &FileSelectForm);
         Application->CreateForm(__classid(TSingleOperationEnbFrom), &SingleOperationEnbFrom);
         Application->CreateForm(__classid(TWaitingForm), &WaitingForm);
         Application->CreateForm(__classid(TWaitingForm), &WaitingForm);
         Application->Run();
    }
    catch (Exception &exception)
    { 
        Application->ShowException(&exception); 
    } 
    return JE_SV_APPLICATION_RETURN;
}