Oliver Sommer 
2009-12-29

see KB 938245 (http://support.microsoft.com/kb/938245/en-us)

Problem 2

When you run a script to configure the virtual directory for the report server, you receive the following error message:

Cause of Problem 2

This problem occurs because of a new permission requirement in IIS 7.0. This permission requirement is for ISAPI extensions that use a wildcard (*) script mapping.

Workaround for Problem 2

To work around this problem, follow these steps:

1. Click Start, click Run, type inetmgr, and then click OK.
2. In Internet Information Services (IIS) Manager, expand Web Sites, expand Default Web Site, and then click the virtual directory for the report server.
3. Under Features View, double-click Handler Mappings.
4. Under Actions, click Edit Feature Permissions.
5. Click to select the Scripts check box, and then click OK.