Поиск установленных драйверов

std::string __fastcall CreateProc(char * commandline)
{
    HANDLE StdOutPipeRead;
    HANDLE StdOutPipeWrite;
    HANDLE StdInPipeRead;
    HANDLE StdInPipeWrite;
    SECURITY_ATTRIBUTES SA = {0};
    PROCESS_INFORMATION pi = {0};
    STARTUPINFOA si = {0};
 
    SA.nLength= sizeof(SECURITY_ATTRIBUTES);
    SA.lpSecurityDescriptor = NULL;
    SA.bInheritHandle = TRUE;
 
    if (!CreatePipe(&StdOutPipeRead,&StdOutPipeWrite,&SA,0)) return "";
    if (!CreatePipe(&StdInPipeRead,&StdInPipeWrite,&SA,0))
    {
        CloseHandle(StdOutPipeRead);
        CloseHandle(StdOutPipeWrite);
        return "";
    }
    si.cb = sizeof(STARTUPINFO);
    si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
    si.hStdInput = StdInPipeRead;
    si.hStdOutput = StdOutPipeWrite;
    si.hStdError = StdOutPipeWrite;
    si.wShowWindow = SW_HIDE | SW_SHOWMINNOACTIVE;
    if (!CreateProcessA(NULL,commandline,NULL,NULL,TRUE,
                        CREATE_NEW_CONSOLE,NULL,NULL,&si,&pi))
 
    {
        CloseHandle(StdOutPipeRead);
        CloseHandle(StdOutPipeWrite);
        CloseHandle(StdInPipeRead);
        CloseHandle(StdInPipeWrite);
        return "";
    }
    CloseHandle(StdOutPipeWrite);
    std::string tmp_ = "";
    while (1)
    {
           char Buffer[255] = {0};
           DWORD BytesRead;
           bool WasOK = ReadFile(StdOutPipeRead, &Buffer, 255, &BytesRead, 0);
           if (BytesRead > 0)
           {
              char tmp[255] = {0};
              OemToCharA(Buffer,tmp);
              tmp_.append(tmp);
           }
           if (!WasOK || BytesRead <= 0) break;
           Application->ProcessMessages();
    }
    WaitForSingleObject(pi.hProcess,INFINITE);
    CloseHandle(pi.hThread);
    CloseHandle(pi.hProcess);
    CloseHandle(StdOutPipeRead);
    CloseHandle(StdInPipeRead);
    CloseHandle(StdInPipeWrite);
    return tmp_;
}