The product provides the following NTLM authentication DLLs:

  • DDJDBCAuthxx.dll (32-bit)
  • DDJDBC64Authxx.dll (Itanium 64-bit)
  • DDJDBCx64Authxx.dll (AMD64 and Intel EM64T 64-bit)

where xx is a two-digit number.

The DLLs are located in the install_dir/lib directory (where install_dir is your product installation directory). If the application using NTLM authentication is running in a 32-bit JVM, the driver automatically uses DDJDBCAuthxx.dll. Similarly, if the application is running in a 64-bit JVM, the driver uses DDJDBC64Authxx.dll or DDJDBCx64Authxx.dll.

To configure the driver:

  1. Set the AuthenticationMethod property to auto or ntlm. See Using the AuthenticationMethod Property for more information about setting a value for this property.
  2. By default, the driver looks for the NTLM authentication DLLs in a directory on the Windows system path defined by the PATH environment variable. If you install the driver in a directory that is not on the Windows system path, perform one of the following actions to ensure the driver can load the DLLs:
    1. Add the install_dir/lib directory to the Windows system path, where install_dir is your product installation directory.
    2. Copy the NTLM authentication DLLs from install_dir/lib to a directory that is on the Windows system path, where install_dir is your product installation directory.
    3. Set the LoadLibraryPath property to specify the location of the NTLM authentication DLLs. For example, if you install the driver in a directory named "DataDirect" that is not on the Windows system path, you can use the LoadLibraryPath property to specify the directory containing the NTLM authentication DLLs: 
      jdbc:datadirect:oracle://server3:1521;ServiceName=ORCL;
LoadLibraryPath=C:\DataDirect\lib;User=test;
Password=secret
  3. If using NTLM authentication with a Security Manager on a Java Platform, security permissions must be granted to allow the driver to establish connections. See Permissions for Kerberos Authentication for an example.