System.DirectoryServices Connection Strings for Windows Active Directory and Local Computers

If you are looking for possible connection strings that you can use for your C# application to support Active Directory as well as the Local Windows NT Database, this MSDN article provides great information about how to appropriately connect to each of these stores:  https://msdn.microsoft.com/en-us/library/system.directoryservices.directoryentry.path%28v=vs.110%29.aspx

In addition, if you are using an Active Directory Membership Provider for ASP.NET, the Connection Strings in the above cited MSDN article will also provide information on how to connect to your Active Directory stores!