Good morning,

For those braves ones willing to test the SP1 Beta in Production, although it's not supported, here goes some valuable information.

- http://support.microsoft.com/kb/981002 (for Win2008R2)
- http://support.microsoft.com/kb/981001 (for Win2008SP2)

These KB's address the Error HTTP 500 when connecting via Outlook Web Application (OWA) as well as when deleting an item via OWA, it will also return the same error.

On the Aplication Log this evente is writen :

Log Name:      Application
Source:        System.ServiceModel 3.0.0.0
Date:          5/7/2010 12:56:08 PM
Event ID:      3
Task Category: WebHost
Level:         Error
Keywords:      Classic
User:          SYSTEM
Computer:      CASServername.domain.com
Description:
WebHost failed to process a request.

Look for this string :

Sender Information: System.ServiceModel.ServiceHostingEnvironment+HostingManager/42194754
Exception: System.ServiceModel.ServiceActivationException: The service '/Autodiscover/Autodiscover.xml' cannot be activated due to an exception during compilation.  The exception message is: Could not find a base address that matches scheme http for the endpoint with binding CustomBinding. Registered base address schemes are [https].. ---> System.InvalidOperationException: Could not find a base address that matches scheme http for the endpoint with binding CustomBinding. Registered base address schemes are [https].

Thanks to Alexandre Guerra for sharing the info :)

Have a nice day.

João Ribeiro

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Good morning,

We have just released the Service Pack 1 BETA so that you can test and provide feedback on the usual ways :)

Please read the description below :

Microsoft Exchange Server 2010 helps IT Professionals achieve new levels of reliability with greater flexibility, enhanced user experiences, and increased protection for business communications.

  • Flexible and reliable - Exchange Server 2010 gives you the flexibility to tailor your deployment based on your company's unique needs and a simplified way to keep e-mail continuously available for your users.
  • Anywhere access - Exchange Server 2010 helps your users get more done by giving them the freedom to securely access all their communications - e-mail, voice mail, instant messaging, and more - from virtually any platform, Web browser, or device.
  • Protection and compliance - Exchange Server 2010 delivers integrated information loss prevention, and compliance tools aimed at helping you simplify the process of protecting your company's communications and meeting regulatory requirements.


This pre-release software is intended for evaluation purposes only. You must accept the license terms before you are authorized to use the software. There is no product support for this trial software. You are welcome to participate in the forums to share your trial experiences with others and to ask for advice.

The download link is :

http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=a0965fc9-2723-4947-ae6b-74bc3808e72a

BTW - Did I mention this is a BETA ??

Waiting on your comments :)

Kind regards,

João Ribeiro