"Cannot download the information you requested" error in SSRS 2008 when you click a drillthrough report link

Microsoft distributes Microsoft SQL Server 2008 Service Pack 2 (SP2) fixes as one downloadable file. Because the fixes are cumulative, each new release contains all the hotfixes and all the security updates that were included with the previous SQL Server 2008 SP2 update release.

Consider the following scenario:

• You install Microsoft SQL Server 2008 Reporting Services (SSRS 2008) on a computer.
• You add a drillthrough report link to a report. The link targets another report.
• You set some nullable parameters that are passed to the drillthrough report, and the value of a parameter is null.
• You export the report that contains the drillthrough report link to a Word document or to an Excel worksheet.
• You click the drillthrough report link.

In this scenario, you receive the following error message:

This issue occurs because the export operation generates the drillthrough report link incorrectly.

Cumulative update information

SQL Server 2008 Service Pack 3

The fix for this issue was first released in Cumulative Update 3 for SQL Server 2008 Service Pack 3. For more information about this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 fix release. Microsoft recommends that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base: Microsoft SQL Server 2008 hotfixes are created for specific SQL Server service packs. You must apply a SQL Server 2008 Service Pack 3 hotfix to an installation of SQL Server 2008 Service Pack 3. By default, any hotfix that is provided in a SQL Server service pack is included in the next SQL Server service pack.

SQL Server 2008 Service Pack 2

The fix for this issue was first released in cumulative update package 7 for SQL Server 2008 Service Pack 2. For more information about how to obtain this cumulative update package for SQL Server 2008 Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base:Note Because the builds are cumulative, each new update release contains all the hotfixes and all the security updates that were included with the previous SQL Server 2008 Service Pack 2 update release. We recommend that you consider applying the most recent update release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

To work around this issue, do not use nullable parameters in the report.