ADO连接CreateInstance在Windows Server 2003上失败 [英] ADO Connection CreateInstance Fails On Windows Server 2003

问题描述

我有一个应用程序在Windows 7上运行良好，但在Server 2003上失败。失败的行是

I have an application that runs fine on Windows 7 but is failing on Server 2003. The line that fails is the third line below

_ConnectionPtr pConnection = NULL;
::CoInitialize(NULL);
HRESULT hr = pConnection.CreateInstance(__uuidof(Connection));

返回的HRESULT为0x80004002（不支持接口）。这两个机器都安装了MDAC，我不明白为什么我得到这个错误。

The HRESULT returned is 0x80004002 (Interface not supported). Both machines have the MDAC installed and I can't see why I am getting this error. Any reasons this might be happening?

推荐答案

这可能会有帮助...

This might help...

在正在运行的计算机上重新编译ADO应用程序后，ADO应用程序不会在低级操作系统上运行Windows 7 SP 1或Windows Server 2008 R2 SP 1或已安装KB983246

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