This problem is caused by corrupted or incorrect versions of the dependency files of the Dao350.dll file
Please follow this steps to recover...
1. In the directory c:\program files\common files\microsoft shared\DAO, rename the Dao350.dll file as Dao350.old.
2. On the Visual Basic 6.0 CD, locate the Dao350.dll file, and then copy it to the directory c:\program files\common files\microsoft shared\DAO. (The Dao350.dll file is located in the \os\system folder on the Visual Basic 6.0 CD.)
3. To register this file, click Start, click Run, and then type or paste the following line:Regsvr32 "c:\program files\common files\microsoft shared\DAO\Dao350.dll"
4. Install Microsoft Data Access Components (MDAC) 2.5 or later.