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ADO Linking problem!!

Posted on 1998-10-29
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Last Modified: 2013-11-20
#include <afxdisp.h>
#include <adoid.h>
#include <adoint.h>

When I included the above files and compiled my project in VC++ 5.0 with OLEDB SDK, following linking error occured:

ADO_ExerciseDlg.obj : error LNK2001: unresolved external symbol _CLSID_CADORecordset
ADO_ExerciseDlg.obj : error LNK2001: unresolved external symbol _IID_IADORecordset
ADO_ExerciseDlg.obj : error LNK2001: unresolved external symbol _CLSID_CADOConnection
ADO_ExerciseDlg.obj : error LNK2001: unresolved external symbol _IID_IADOConnection
Debug/ADO_Exercise.exe : fatal error LNK1120: 4 unresolved externals

After that, I also included objbase.h and initguid.h header files. Now difference linking problem occured:

error LNK2005: _IID_EnumMarshalOptions already defined in ADO_Exercise.obj
ADO_ExerciseDlg.obj : error LNK2005: _IID_EnumSchema already defined in ADO_Exercise.obj
ADO_ExerciseDlg.obj : error LNK2005: _IID_EnumObjectState already defined in ADO_Exercise.obj
.
.
etc
77 linking errors

I have checked the link tab in Project settings and I put NOTHING in it!

Anyone know why????  
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Question by:sqlserver
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Accepted Solution

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f4817 earned 20 total points
ID: 1324016
Hello,
You must include in your project the lib adoid.lib for that work
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