Microsoft KB Archive/896144

= You cannot access the &quot;Message.AuthenticationInfo.SecurityToken&quot; property in Live Communications Server 2005 =

Article ID: 896144

Article Last Modified on 5/13/2007

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APPLIES TO


 * Microsoft Office Live Communications Server 2005 Enterprise Edition
 * Microsoft Office Live Communications Server 2005 Standard Edition

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SYMPTOMS
When you try to use the Message.AuthenticationInfo.SecurityToken property in Microsoft Office Live Communications Server 2005, the Message.AuthenticationInfo.SecurityToken property returns the following result: IntPtr.Zero.



CAUSE
This issue occurs because access to the SecurityToken property of the Message.AuthenticationInfo property has been removed in Live Communications Server 2005. Therefore, when an application tries to access the SecurityToken property, a reference to the Microsoft .NET Framework Zero field, IntPtr.Zero, is returned to the application.



MORE INFORMATION
Access to the Message.AuthenticationInfo.SecurityToken property is removed from Live Communications Server 2005 to help increase security on the computer that is running Live Communications Server 2005.

For more information about the .NET Framework IntPtr.Zero field, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/system.intptr.zero(vs.71).aspx

For more information about the AuthenticationInfo.SecurityToken property, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/aa644867(office.11).aspx

Additional query words: LCS 2005, RTC, managed application, app, privilege, RtcSrv, process token, elevate

Keywords: kbprb kbtshoot KB896144

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