Hi,

Thanks for your posting.

From your descriptions, I understood you would like to know how to use LDAP
for authentication in SQL Server Reporting Services. If I have
misunderstood your concern, please feel free to point it out.

Based on my knowledge, Reporting Services retrieves report data using Data
Processing Extensions. Data Processing Extensions use ADO.NET managed
providers. Reporting Services by default provides extensions to retrieve
data from the following data sources:

- SQL Server 2000
- SQL Server 7.0
- SQL Server 2000 Analysis Services
- Oracle
- ODBC data sources
- OLE DB data sources

Microsoft does not provide support for Reporting Services to use LDAP
directly as the data source by default. Since Reporting Services is
extensible, you could create extensions that retrieve data from additional
data sources such as LDAP by yourself. Please refer to the following
article on how to create a Data Processing Extension for Reporting Services:

Implementing a Data Processing Extension:
http://www.msdn.microsoft.com/library/default.asp?url=/library/en-us/RSPROG/
htm/rsp_prog_extend_dataproc_5c2q.asp

However, as to how to implement a Data Processing Extension is quite beyond
our supportability as we are not familiar with the specific application
logic on your side. And an incident of Web Response support is intended to
solve a specific issue such as Server hang, Installation failure, etc.

There are also some third-party vendors that implement an ODBC data source
for
LDAP. You could find the product of Persistent Systems Private Limited in
the "Component Partners for Reporting Services" web page on Microsoft Web
Site:
<http://www.microsoft.com/sql/reporting/partners/component.asp>

Thank you for your patience and cooperation. If you have any questions or
concerns, don't hesitate to let me know. We are always here to be of
assistance!

Sincerely yours,

Michael Cheng
Microsoft Online Partner Support

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