ADO Connection ptr under Windows 7 fails in Windowx XP

[aaandrei]

Hello everybody, Currently all my C++ project are on a Windows XP machine. For database connections I’m using ado. In stdafx.h I have lines: #import "c:\Program Files\Common Files\system\ado\msado15.dll" rename_namespace( "ado" ) rename("EOF", "ADOEOF") #import "C:\Program Files\Microsoft SQL Server\80\Tools\Binn\Resources\1033\sqldmo.rll" no_namespace And when it’s required I call ado::_ConnectionPtr pConn = NULL; hr = pConn.CreateInstance( __uuidof( ado::Connection ) ); Everything has been working fine. But now I’m moving all my projects to Windows 7 machine. And it appears, that created .exe files are working fine on Windows 7 machine but on Windows XP ado pointer could not be created. hr = pConn.CreateInstance( __uuidof( ado::Connection ) ); doesn’t create valid connection object. Thank you in advance, any suggestions will be appreciated

[Jochen Arndt]

With Windows 7 SP1 or installed KB983246, the ADO DLL has been changed. See http://support.microsoft.com/kb/2517589/en-us[^]. Solution 1 (install updated libraries) See http://blogs.msdn.com/b/psssql/archive/2011/10/03/yes-we-made-a-mistake-and-are-finally-going-to-fix-it.aspx[^] and http://support.microsoft.com/kb/2640696[^] to download new libraries. Solution 2 (excluding and renaming changed UUIDs) See Your ADO is broken[^]. Use this only when your developing machine uses Windows 7 SP1.