Download the Novell.Directory.Ldap.dll file from http://forge.novell.com/modules/xfmod/project/?ldapcsharp if you don't have it.

Copy Novell.Directory.Ldap.dll and mono.security.dll to an appropriate location in your project.

Start Visual Studio .NET.

Select File > New > Project.

In the Project Type column, select the project type to create C#.

In the Template column, select a project template (like Console Application, Windows Application).

Enter a name for your project.

Click OK to create your new project.

Select Project > Add reference > Browse.

In Browse, select Novell.Directory.Ldap.dll and mono.security.dll from the location you copied in Step 2.

Figure 1-1 Windows Setup: Adding a Reference

Click OK to Add Reference.

Add the following line to your code:

using Novell.Directory.Ldap;