为什么WriteProcessMemory函数无法写内存

[Gue]

char m_strMutexID[255];
strcpy(m_strMutexID, "asdfghjklkhj");

void CLoaderDlg::OnOK()
{
CWnd* button1 = GetDlgItem(IDOK);
CString strFileName;
strFileName = ".\\1.exe";
LPVOID lpBaseAddress= (LPVOID)/*4218972;*/0x40605C;

button1->EnableWindow(false);
m_strMutexID[9]++;

CString test = m_strMutexID;

STARTUPINFO si;
PROCESS_INFORMATION pi;

ZeroMemory( &si, sizeof(si) );
si.cb = sizeof(si);
ZeroMemory( &pi, sizeof(pi) );

::GetStartupInfo(&si);
if (!::CreateProcess(strFileName, NULL, NULL, NULL, false, CREATE_SUSPENDED, NULL, NULL, &si, &pi))
MessageBox(ErrorExit("CreateProcess"));
else
{
int nIDSize = test.GetLength();

if (!::WriteProcessMemory(pi.hProcess, lpBaseAddress, test.GetBuffer(nIDSize), (DWORD)nIDSize, NULL))
MessageBox(ErrorExit("WriteProcessMemory"));

TRACE(ErrorExit("WriteProcessMemory"));

::ResumeThread(pi.hThread);
::CloseHandle(pi.hProcess);
}
button1->EnableWindow(true);
}


WriteProcessMemory函数总是返回：WriteProcessMemory failed with error 0: 操作成功完成。

[wltg2001]

内存块属性问题,有的内存块的属性是只读的,或是执行属性的,不可以被写.用VirtualQueryEx先修改内存属性,将它变成可读写的.