bool GetFullPath(DWORD  dwPID, TCHAR szFullPath[])
{
  bool      bRet;
  HANDLE      hModuleSnap = NULL; 
  MODULEENTRY32 me32        = {0}; 

    // Take a snapshot of all modules in the specified process. 
  
    hModuleSnap = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, dwPID); 
    if (hModuleSnap == (HANDLE)-1) 
        return false; 

  me32.dwSize = sizeof(MODULEENTRY32); 

    if (Module32First(hModuleSnap, &me32)) 
    { 
    strcpy(szFullPath,me32.szExePath);
        bRet = true;   
    } 
    else 
        bRet = false;
 
    // Do not forget to clean up the snapshot object. 

    CloseHandle (hModuleSnap); 
  return bRet;
}