You may encounter an error saying ntwdblib.dll in Windows 7. As it happens, there are different ways to fix this problem, so we will discuss them in a moment.
Ntwdblib.dll, File Description: SQL Server Client Library
Errors related to ntwdblib.Can dll occur for a variety of reasons. For example, the erroneous iPhone application, ntwdblib.dll has been deleted, or even misplaced, corrupted or possibly malicious computer program has corrupted the Windows registry on your PC.
Many common error message campaigns:
In most cases, I would say that the solution is a productive reinstallation of ntwdblib.dll on your computer to the Windows system directory. Also, some PC games, especially programs, require the DLL file to be placed in the game/application installation folder.
See all of these FAQs for published installation instructions.