This error is very common when supplying specific credentials in an LDAP bind. In many cases, this error simply indicates that the credentials supplied were incorrect. However, there are some other, subtler reasons why this error often occurs.
Furthermore, Chapter 8 provides useful information on general security issues with binding to the directory, and Chapter 12 provides an entire section on scenarios for LDAP-based authentication.
Part I: Fundamentals
Introduction to LDAP and Active Directory
Introduction to .NET Directory Services Programming
Binding and CRUD Operations with DirectoryEntry
Searching with the DirectorySearcher
Advanced LDAP Searches
Reading and Writing LDAP Attributes
Active Directory and ADAM Schema
Security in Directory Services Programming
Introduction to the ActiveDirectory Namespace
Part II: Practical Applications
User Management
Group Management
Authentication
Part III: Appendixes
Appendix A. Three Approaches to COM Interop with ADSI
Appendix B. LDAP Tools for Programmers
Appendix C. Troubleshooting and Help
Index