This post originated from an RSS feed registered with .NET Buzz by Christian Weyer. Original Post: Undocumented fixes by .NET Fx 1.1 SP 1 Feed Title: Christian Weyer: Web Services & .NET Feed URL: http://www.asp.net/err404.htm?aspxerrorpath=/cweyer/Rss.aspx Feed Description: Philosophizing about and criticizing the brave new world ... Latest .NET Buzz Posts Latest .NET Buzz Posts by Christian Weyer Latest Posts From Christian Weyer: Web Services & .NET

According to this article, the following bugs have been fixed for XML Web services with .NET Fx 1.1 SP 1.

<CustomErrors mode="Off"/> does not display inner exception messages in runtime SoapException exceptions.

When you set the mode attribute of the <CustomErrors> element to Off, the inner exception type or stack trace is not included for SoapException exception errors. The following code is an example of how to set the mode attribute of the <CustomErrors> element to Off in the Web.config file.

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <system.web>
    <customErrors mode="Off"/>
  </system.web>
</configuration>

Note This behavior occurs after you install the .NET Framework 1.1 SP1.

Web service call behavior that occurs when the WebRequest.PreAuthenticate property is set to true.

When you set the PreAuthenticate property to true before you make a Web service call, the credentials are included with the request. Before you install the .NET Framework 1.1 SP1, the behavior that occurs when the PreAuthenticate property is set to true is the following:
1. A PreAuthenticated Web service call request is made without the credentials.
2. The Web service call is denied, and you receive an HTTP 404 error message.
3. A PreAuthenticated Web service call request is made with the credentials.

Note The discovery steps in step 1 and in step 2 are no longer performed when PreAuthenticate property is set to true.