ShellExecute не стартует процесс с длинной командой

int main(int argc, wchar_t* argv[])
{
    const DWORD TIMEOUT = 60000;
 
    int arg_count;
    LPWSTR* cmd_args = CommandLineToArgvW(GetCommandLineW(), &arg_count);
 
    std::wstringstream wss;
 
    wss << "-unused"; // added because we need to pass some info as 0 parameter
    wss << " parameter"; // added because EU parser sucks
 
    for (size_t i = 0; i < arg_count; ++i)
        wss << cmd_args[i] << " ";
 
    Logger::write(L"ElevatorCommand", wss.str());
 
    SHELLEXECUTEINFO shell_info;
    ZeroMemory(&shell_info, sizeof(shell_info));
 
    shell_info.cbSize = sizeof(SHELLEXECUTEINFO);
    shell_info.fMask = SEE_MASK_ASYNCOK | SEE_MASK_NO_CONSOLE;
    shell_info.hwnd = NULL;
    shell_info.lpVerb = NULL;
    shell_info.lpFile = L"C:/AgentTDK/ElevationUtility";
    shell_info.lpParameters = (LPCWSTR)wss.str().c_str();
    shell_info.lpDirectory = NULL;
    shell_info.nShow = SW_MINIMIZE;
    shell_info.hInstApp = NULL;
    ShellExecuteExW(&shell_info);
 
    DWORD start = ::GetTickCount();
    while (shell_info.hProcess == NULL && ::GetTickCount() - start < TIMEOUT)
        continue; // waiting for process to open
 
    return 0;
}