Win7中关于创建Ado Connect的情况 [英] What happens in Win7 about create Ado Connect

问题描述

我的程序，使用ado操作访问数据库，在winxp中运行非常好.
但是在胜利7中有一些沮丧的问题:

My Program，use ado operation access DB, run very good in winxp.
but in win 7 have some depressed problem:

CAdoConnection::CAdoConnection()
{
//创建 Connection 对象---------------------------
m_pConnection.CreateInstance("ADODB.Connection");


it will suspend in m_pConnection.CreateInstance("ADODB.Connection"); 

specific Description:

  // Loads an interface for the provided CLSID.
  // Returns an HRESULT. Any previous interface is unconditionally released.
  //
  HRESULT CreateInstance(const CLSID& rclsid, IUnknown* pOuter = NULL, DWORD dwClsContext = CLSCTX_ALL) throw()
  {
  HRESULT hr;

  _Release();

  if (dwClsContext & (CLSCTX_LOCAL_SERVER | CLSCTX_REMOTE_SERVER)) {
  IUnknown* pIUnknown;
  hr = CoCreateInstance(rclsid, pOuter, dwClsContext, __uuidof(IUnknown), reinterpret_cast<void**>(&pIUnknown));


hang-up in hr = CoCreateInstance(rclsid, pOuter, dwClsContext, __uuidof(IUnknown), reinterpret_cast<void**>(&pIUnknown));

无法返回任何错误代码；
请帮助我.

can not return any Error code;
please help me.

推荐答案

我怀疑您的平台是x64.我适合，无法使用64位以下的访问权限，因此您应该使用WOW64.

I suspect that your platform is x64.I fit is there''s no way to to use access under 64 bits so you are supposed to use WOW64.

完全相同，谢谢你，我解决了问题，HeHe

thank U all the same，I solve the problem, HeHe

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