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Event ID 4773 — COM+ Configuration

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Applies To: Windows Server 2008 R2

COM+ configuration specifies the settings for a Microsoft Component Object Model (COM) application. The administrator can change the settings in property sheets by using the Component Services administrative tool. The property sheets include settings for such areas as Security, Identity, and Activation.

Event Details

Product: Windows Operating System
ID: 4773
Source: Microsoft-Windows-Complus
Version: 6.1
Symbolic Name: ID_QC_UNAUTHENTICATED
Message: An unauthenticated message was received by an application that accepts only authenticated messages.%1%0

Resolve

Check the calling application, and change its security properties

Security restrictions on the COM+ application may have resulted in an error condition. If an unknown or unprivileged application tries to invoke a COM+ application on the server, the system generates error messages. If the calling application is known and should have access, you can correct the error condition by using the Component Services administrative tool to edit the permissions that are associated with the COM+ application.

To perform this procedure, you must have membership in Administrators, or you must have been delegated the appropriate authority.

To edit the COM+ application's security properties:

  1. Click Start, and then click Run.
  2. Type comexp.msc, and then click OK. If the User Account Control dialog box appears, confirm that the action it displays is what you want, and then click Continue.
  3. To locate your application, click Component Services, click Computers, click My Computer, and then click COM+ Applications.
  4. Right-click the component name, and then click Properties.
  5. In the component properties dialog box, click the Security tab, and then adjust the security settings to allow the calling application access.

If the access levels are correct, the calling application may contain a bug that causes it to not secure the message properly. In this case, report the event message to the application developer so that the developer can debug and fix the application.

Verify

You can verify that your component is working properly by running the Component Services administrative tool and ensuring that the required properties for the component are set.

To perform the procedures, you must have membership in Administrators, or you must have been delegated the appropriate authority.

To open Component Services and verify that the component's required properties are set:

  1. Click Start, and then click Run.
  2. Type comexp.msc, and then click OK. If the User Account Control dialog box appears, confirm that the action it displays is what you want, and then click Continue.
  3. To locate your application, click Component Services, click Computers, click My Computer, and then click COM+ Applications.
  4. Right-click the component name, and then click Properties.
  5. In the component properties dialog box, click each tab to verify that the required properties are set.

In addition, you can verify that the COM+ operating system component is installed and working properly.

To verify that COM+ is working properly:

  1. In the console tree of Component Services, click Services (Local).
  2. Scroll through the list of service names to find the following services: COM+ Event System (optional), COM+ System Application, DCOM Server Process Launcher, and Remote Procedure Call (RPC).
  3. Confirm that the status of each service is Started.

COM+ Configuration

Application Server