Attempting to login to the System Center Virtual Machine Manager 2008 self-service portal fails with "Could not load file or assembly"

Article ID: 2397656 - View products that this article applies to.
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Symptoms

Attempting to login to the System Center Virtual Machine Manager 2008 (SCVMM) self-service portal fails with the following error message in the browser:

Could not load file or assembly ‘TraceWrapper,
Version=1 .0.523.0, Culture=neutral,
PubhcKeyToken=31bf3856ad364e35’ or one of its
dependencies. An attempt was made to load a
program with an incorrect format.
Login again
Contact administrator

Cause

This can occur if the application pool for SCVMM self-service portal is configured with Allow 32-bit Applications set to “True” in the Advanced Settings.

Resolution

By default on a 64-bit machine, the Application pool in IIS 7 has the Allow 32-bit Applications setting set to false, however in certain environments the application pool may have Allow 32-bit Applications configured as True. In these cases we will receive error message as stated above. To resolve this issue change the Allow 32-bit Applications setting to False from True. To do that perform the following steps:

  • Open the IIS admin console.
  • Right-click the Application pool corresponding to SCVMM and select Advanced settings.
  • Under the Advanced settings, select the Allow 32-bit Applications setting and change it to False.
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.

Properties

Article ID: 2397656 - Last Review: September 8, 2010 - Revision: 4.0
APPLIES TO
  • Microsoft System Center Virtual Machine Manager 2008
Keywords: 
KB2397656

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