Article ID: 972541 - View products that this article applies to.
An internal server error occurs when a native handler processes Internet Information Services (IIS) 7.0 POST requests while it is running in an Application Pool configured for Integrated mode. The error occurs when the native handler tries to read the POST data. The errors can be different, depending on which module in the pipeline tries to use the POST data first.
This situation occurs because, earlier in the integrated pipeline, a managed component already read the POST data, and that data is not available to the native handler when it tries to read it.
The following scenarios have been identified to cause this problem: