InvalidOperationException from DirectorySearcher

In .NET 2.0, a variety of new search operations are included in the DirectorySearcher class. However, not all of these options work with every single version of ADSI on each Windows platform. For example, Windows XP as of Service Pack 2, and all previous operating systems, does not support extended distinguished name (DN) searches (see Chapter 5).

Trying to use an unsupported search feature will result in this exception with the stack trace pointing to the DoSearchPrefs method. Unfortunately, the error message does not explain that the option was unsupported on our platform, so we are often left scratching our heads. Now we know!

A future version of the .NET Framework may provide a more informative error message here. Additionally, future versions of the ADSI that are included with Windows service packs may introduce these features to down-level clients.

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


Part III: Appendixes

Appendix A. Three Approaches to COM Interop with ADSI

Appendix B. LDAP Tools for Programmers

Appendix C. Troubleshooting and Help


The. NET Developer's Guide to Directory Services Programming
The .NET Developers Guide to Directory Services Programming
ISBN: 0321350170
EAN: 2147483647
Year: 2004
Pages: 165 © 2008-2020.
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